How to Loosen those Darn Nail Polish Caps

So my daughters and their friends were having a manicure party and a few of the caps were so tight. Instead of giving myself a blister from trying to twist it open, I was able to just turn it upside down and run warm water over the bottom of the cap. Then, I took a Q-tip, dipped it in some acetone, and just outlined the area under the cap where the grooves are. That was it. I then was able to twist the cap open. So don't hurt yourself trying to open that stubborn nail polish cap. Instead, use that energy for giving yourself a beautiful manicure/pedicure :).