With a transparent cabinet door, IKEA's great Dioder LED lights and a little ingenuity, you can end up with a huge flat wall light on the cheap.
This neat little hack is super easy. You just adhere two sets of IKEA Dioder lights to the backside of a transparent cabinet door, and you've got yourself a big, bright wall light. In the bedroom, it's great for a diffused reading light, plus it looks pretty great too.
Frosted frame [IKEA Hacker]