Clean your hair dryer

If you use a hair dryer, don't forget to clean the vents now and then. If you don't, they will become clogged and cause your hair dryer to overheat and will eventually make it quit working. Use a makeup brush or something similar to clean it.

Reusing toothbrushes

Save old toothbrushes (or buy the super cheap ones) to use in place of other brushes. Use them to scrub corners and wall trim; to apply messy potions; to dust odd shapers; to reach in small jars when washing, and much more. Sanitize by soaking overnight in a quart of water with a little bleach added. Designate certain ones for certain uses so you don't have to sanitize them all the time.