109. Polish for nails
Best Places to Buy: Rite Aid, CVS, Dollar Stores
Typical Product Price: $0.99 to $10 per jar
Let’s be sincere. It’s kind of nasty to lick envelopes. Yes, it has existed since the invention of the envelope, since spit is frequently the closest available source of moisture. However, we are working harder than ever to limit the number of germs we release into the environment.

©LIGHTFIELD STUDIOS/stock.adobe.com/nail polish hack
Seal the envelope with transparent nail paint rather than licking it. This is probably already in your home. Using clear nail polish will actually make the envelope far more secure than licking it, since it acts as a glue, protective layer, and/or sealer.
