Amazon has a sturdy wall-mounted fold-out desk for $215 that also becomes a full shelving unit when not in use so you can ...

For example, you could attach wooden planks as a ladder ... If your bedroom is small, you could mount pallets directly to the wall as DIY floating shelves -- the perfect solution for limited ...

Vintage suitcases can be transformed into unique wall shelves, giving you a creative way to repurpose old stuff ...