Nice ideas for creating bookshelves out of crates: DIY Crate Bookshelf Tutorial — Tara Michelle Interiors
Turn ordinary wooden crates into cool bathroom storage on wheels - Step-by-step tutorial
Home Made Modern: Denim Pocket Organizers (Trend Alert)(Cuadros Diy Ideas)
Hanging wooden crates for storage (shoes gloves hats next to front door)--good for garage or mud room. Change it up to colorful milk crates and it could make useful toy storage for the kids room!
Hidden Fridge Gap Slide-Out Pantry . I would make this taller. If you're worried about heat, you could make it into a lid rack! I hate the fridge magnets though