Four wall-mounted drying racks in a mudroom create an instant indoor drying room; recreate the look with four wall-mounted racks from Ikea. For something similar, consider Ikea's wall-mounted Grundtal Drying Rack;
Place painted foam board in the back of the bookcase, giving the look of a painted bookshelf w/out the commitment. Love this idea for a small book shelf next to couch. Good way to use yellow without committing to it in a big space.
Crate Storage: Wooden crate converted into a portable side table with storage - love this creative idea. Easy to make: Turn crate sideways, add a couple of internal dividers & screw 4 castors on the base. wheels for me)
DIY Idea: Make Simple Patterned Wooden Crates For Storage
Geometric patterns painted on wooden storage crates--I bet you could use wall decals to make the design too if you sealed the wood first. (maybe for one box-like the chocolate display- to bring in the devil girls)
The most innovative book arrangement: Cool DIY pipe book shelf.for the industrial looking living room.all parts can be bought at home depot, and they will even thread the pipe for you there to the length that you need it! Maybe for bedroom idea.