1. If you have a collection of individual eyeshadows, store them in ice cube trays.
2. And pick up a few more ice cube trays so you can freeze fresh herbs in olive oil to use the next time you cook.
Melt a cube of herby butter whenever you need to sauté veggies for a quick dinner, add to the middle of a roast chicken, or let thaw on a plate for dipping bread. And never waste a good bunch of herbs again. Read the full tutorial here.
3. Organize your laundry hampers vertically to save space in a small home or apartment.
4. Repurpose a kitchen utensil caddy as bathroom countertop organization.
In a multi-person bathroom, everyone could have their own cubby for their toothbrush and toothpaste...and everyone could be responsible for keeping their own cubby clean.
See more of this organized master bathroom here.