A while back, we featured this cool Ikea-hacked litter box slash storage bench. If you're looking for a litter box solution that looks just as nifty but has half the footprint, check out this transformation of a simple Besta shelf unit. Using a Besta shelf unit ($60) and a cat flap ($14) from PetCo, Toki's owners fashioned this simple, sleek unit that fits neatly into the bathroom. In addition to housing the litter box, it also even has room for a bit of storage. (We're assuming not for towels?)

(Images: Flickr member armst, licensed for use under Creative Commons)