The most clever life hack you've learned

A clever life hack that many people have found useful:

Use a hair straightener to iron out shirt collars: If you're in a rush and your shirt collar is wrinkled, a hair straightener can be a quick and effective way to smooth out the wrinkles and make your collar look neat and crisp.

Please remember to exercise caution and follow safety guidelines when using any household appliances for unconventional purposes.