MagnaPods are a simple, good idea. They’re magnatized organizers that you stick to the inside door of your medicine cabinet to hold all of the smaller things like Q-Tips and lip balm that don’t have a place to be. They’re specially designed to take up the unused gap between the door and the shelf on steel frame cabinets. To use them on wood, get their special steel sheet to turn your wooden door into a magnetic surface.
Organization doesn’t have to be expensive either, their highest priced item is $11.
I just ordered mine.