Stained wooden crates (a la Michael's) plus shelving brackets.
Ombre nails DIY
Clear polish + eyeshadow = matte polish. For all those broken eyeshadows - Hm! You learn something new every day!
DIY storage boxes
Cut a shoe organizer in half and use it for bathroom stuff to have a clutterless counter. Flat iron, blow dryer, brushes, etc. Genius!
Individualized "Crap baskets". When you find someone's crap lying around the house, you put it in their individual baskets and then they have to empty it by the end of the night. good family idea
Organize yourself with clipboards.