76. Antifreeze

Expires In: 5 Years (Opened)
Average Price: $100-$150*
Antifreeze, if unopened, will keep indefinitely. However, after you have opened it, you have five years to use it. Mechanics recommend changing the antifreeze in your car every 30,000 miles. Make sure the antifreeze is less than five years old, so the amount you spend will be dependent on how much you drive

Premixed ©Antifreeze Krasula / Shutterstock
Antifreeze doesn’t “go bad” in the traditional sense, but it can lose its effectiveness after five years after you open it. This, in turn, can cause big problems for your car, if you unknowingly use ineffective antifreeze. The damage might not be instant, but your car will have trouble starting.

77. Windex

Expires In: 2 years
Average Price: $2.97*
TheKitchn has found that Windex cleaner lasts two years (as does wood polish and Mr. Clean, two other common household favorites). Again, when it comes to cleaning products, Windex won’t “spoil” in the traditional sense, but it will degrade over time and become less potent. It might even cause streaks on your windows instead of removing them.

Windex ©jadimages / Shutterstock
You can tell if your Windex has gone bad by its effectiveness. If you use it and find that it is causing streaks, that is a sign that you should replace it. Check your Windex bottle’s expiration date to know when to buy a new one.  

78. Pepper Spray

Expires In: 3 Years
Average Price: $10*
Pepper spray usually loses its effectiveness after three years. Pepper spray is an important self-defense tool, so you want to make sure that, if you have to use it, you actually have a product that will make an impact. Being pepper-sprayed is notoriously painful, and it serves as a good disabling tool in self-defense situations.

Pepper Spray ©rock-the-stock / Shutterstock
After thirty-six months, get a new container of pepper spray. The expiration date is usually listed on the canister or the maker’s website. If pepper spray has gone bad, the spray won’t go as far and it will be less effective, even in a close combat situation.

79. Christmas Trees

Expires In: 5 Weeks
Average Price: $78*
It might be tempting to keep the Christmas spirit going for long after New Years’ has passed, but you could be putting your family in serious danger without even knowing it. While Christmas trees may seem like an innocuous symbol of holiday fun, they are actually major fire hazards that cause fatal house fires year after year.

Christmas Tree @DCMshutterbug / Shutterstock
The trees themselves tend to dry out as they have been cut off at the roots, no longer getting a steady supply of water. Once the branches and pine needles are fully dried out, which can happen in as little as six weeks, all they need is a tiny spark to catch flame. And just as it happens, faulty wires in Christmas lights often make the perfect fire starters. Stay on the safe side this year and get rid of your tree after the big day.

80. Medication

Expires In: Depends on medication
Average Price: Depends on medication
Usually, when you look on the bottle of your prescription or over-the-counter medication, you’ll see an expiration date. If you’re filling a prescription, you usually have one year to fill it before it is considered null and void. The reason for the expiration dates is related to drugs’ effectiveness.

Medication ©Burlingham / Shutterstock
Over time, drugs lose their potency. The expiration date listed on the bottle or blister pack is the last date that the medication’s manufacturer can guarantee the full safety and effectiveness of a drug. If too much time passes from that date, you might find that the drug barely works or is even completely useless.

81. Water Bottles

Expires In: 2 years
Average Price: $1-$2 per bottle*
Though the FDA has not listed an official shelf life for bottles of water, nor has it required manufacturers to list one, Nestle advises that you don’t keep your bottle around for more than two years. If it’s sparkling water, throw it out after a year. Bottled water can stay safe for a long time if it is stored properly.

Water Bottles ©Stefanovic Mina / Shutterstock
Tap water can be kept for up to six months. Its flavor might change over time, but Healthline says it is still safe to drink if you keep it stored properly. Though not FDA-required, you can usually find an expiration date listed on the bottle of water itself.

82. Bathrobes

Expires In: 2 years
Average Price: $50-$100*
Bathrobes are a great way to keep warm when you step out of the shower. Though obviously, their expiration is far different from that of food or beverages, bathrobes do need to be replaced every couple of years. According to The Cleaning Authority, bathrobes can lose their absorbency over time, as can towels.

Bathrobes ©UfaBizPhoto / Shutterstock
After a couple of years, towels and bathrobes that are frequently used and washed can lose their absorbency and even fray and tear. Obviously, if you smell any mildew, you should throw your bathrobe away and replace it far before then, as you’ll be hard-pressed to fix that issue.

83. Bamboo Utensils

Expires In: 5-6 months
Average Price: $20-$50 per set*
Bamboo is part of a diverse group of evergreen perennials. Bamboos are the largest of the grass family, and the material is used for a lot of different things, from housing to utensils. Bamboo utensils are an eco-friendly way to eat your meals, but these utensils don’t last forever.

Bamboo Utensils ©GOLFX / Shutterstock
They need to be replaced every five to six months. Some cutlery might decompose before then at the three-month mark. While you have the cutlery, make sure that you keep it clean, in order to prevent bacteria from growing. When the bamboo utensils expire, they can be recycled, as they are biodegradable.

84. Oven

Expires In: 10-15 years
Average Price: $300-$1,500*
Ovens are an essential kitchen appliance. Some of us use our ovens every day, and the average span of the oven and stove is ten to fifteen years. The stove might even last longer if you have a gas range. One of the biggest signs that you need to replace one of these appliances is the length of time it takes to heat up.

Oven ©Inked Pixels / Shutterstock
Another sign that you need to replace your oven is when it makes strange noises. If you hear ticking, whirring, or banging, that could be a sign that there is a faulty part—or, perhaps your oven is just too old.

85. Kettle

Expires In:4-5 years
Average Price: $20-$60*
As with any appliance, there comes a time where it needs to be replaced. Your kettle might be your favorite way to make tea, and it might also be a beloved appliance in your home. Though you love your kettle, do not keep it for more than four to five years, at the maximum.

Kettle ©ReaLiia / Shutterstock
Kettles go bad over time, and one of the easiest ways to tell that you need to buy a new kettle is the taste of the water. If your boiled water tastes metallic (or is an off-color that doesn’t look too potable), it’s time to replace the kettle.

86. Yoga Mats

Expires In: 6-12 months
Average Price: $20-$80*
Yoga is an excellent way to get in shape. It tones your core and can even help you keep a peaceful, calm mind. Millions of people love yoga, but they might not all know that you need to replace your yoga mat every six to twelve months. This number, of course, depends on the intensity of your yoga routine.

Yoga Mats ©Rawpixel.com / Shutterstock
The more intense your routine, the more often you need to replace your mat. When your mat is worn, uneven, and not sticky anymore, it’s time to get rid of it. Doing yoga on a worn mat could lead to a serious injury at worst. At best, you won’t get as good of a workout.

87. Vitamins

Expires In: Depends on the expiration date
Average Price: $10-$60 per bottle*
Vitamins are a must-have supplement for a lot of people. Many can’t start their day without their essential vitamin, and it’s recommended that you take one, as vitamins can help you get your essential nutrients. If you find a bottle of old vitamins in your pantry, you’d be wise to just toss them out.

Vitamins ©FotoHelin / Shutterstock
Though it’s unlikely that they could cause you harm, vitamins, much like medication, lose their potency over time. They might not be as effective as they were before the expiration date. Though Prevention says that they are “likely safe” for two years past the expiration date, it would be better to just get a new bottle.

88. Carpet Cleaner

Expires In: Depends on the expiration date
Average Price: $10-$20 per bottle*
All cleaners have some type of expiration date, and you can find that date on the bottle. Carpet cleaners have agents in them that don’t last for life, and the effectiveness with which the cleaner cleans out your rugs and carpets depends on these agents firing on all cylinders.

Carpet Cleaner ©AVAKAphoto / Shutterstock
Check the carpet shampoo bottle before you use it. If you use it after it has expired, it might not be as potent. You may find that the cleaner is useless against stains if it is expired. Or, even worse, the expired cleaner could make the stain more noticeable or grind it further into the carpet.

89. Nail Polish

Expires In: 2 years (opened), 5-8 years (unopened)
Average Price: $1-$10 per bottle*
Nail polish does go bad, as anyone who has ever tried to use old polish that they found in the back of their cabinet knows. If the polish is unopened, the shelf life is anywhere from five to eight years. If you’ve opened the bottle, you have around two years before the polish goes bad.

Nail Polish ©margostock / Shutterstock
If your polish is expired, the texture of it will be a dead giveaway. If the polish is gloopy, thick, and hard to paint with, then you know it has gone bad. Just throw it out—attempting to paint with bad polish will only cause you frustration. And your nails won’t look very good, either.

90. Sprinkles

Expires In: 1 year (opened)
Average Price: $1-$5*
Sprinkles, as well as colored sugar and other, similar baked goods decorations, are made of pure sugar. Sugar resists bacterial growth, so it rarely goes bad. Sprinkles last up to a year, even if they’ve been opened. When you store them in a cool, dry place, they will most assuredly make it that long.

Sprinkles ©PAOLA ULLOA / Shutterstock
Most baking products have a “best before” date. If the sprinkles are sealed and never opened, you can usually exceed that date by a little while. However, do a taste test first—if the sprinkles taste stale, throw them out and buy a new pack.