Gold Bond Friction Defense. I will admit (in case you didn't already know) I have huge boobies. When you have gigantic tatas, the skin underneath can get easily irritated, especially when exercising. This stuff has been a blessing. If you too have massive mammaries, give it a try.
Aquaphor healing ointment...this is a cure all in dermatology. Use it instead of NEOSPORIN (very allergic) for cuts, burns, chapped skin, you name it it's for it! better than vaseline!
Stuff a sponge into a jar and soak it in polish remover to make an easy DIY nail polish remover.