Small on space but big on green thumb ambitions? Get growing with this Urbio Modular Garden and Wall Organizer ($75-$175). Pack the included containers with whatever plants you like, then attach them to the magnetic backplates mounted on your wall. Removing them for watering or to dump out and replace the ones that turn brown is a breeze, and the totally modern look of this system transforms your cactus collection into a spiffy piece of art. If you don't trust yourself with plants, this also works great as a place to stash office or kitchen supplies.