This genius idea just seems too simple. Create a pen caddy with toilet paper rolls and an old shoe box! Or, use them to organize those pesky cords. ( this page isn't found but I think you get the idea )
Do you have some old (fruit or milk) crates? Or you just need a practical (and low budget) storage (organizing) system? Try out this brilliant woodworking idea: the crate bookshelf! You can combine the crates in any shape that fits .