I've got my brewing equipment stored in a couple different places throughout the house. I've got some shelving that I keep some rubber maid bins full of the small stuff stored in. I just put in a new rack though for the garage that'll help keep stuff more out of the way when I'm not using it. It's one of these:
Now I can put the keggle, mash tun, and propane burner on there and get it out of the way so I'm not tripping over it all the damn time. It's a 4x4 square of space, so you can put a decent amount of stuff in there. Lowering it and unloading it when I want to use it is pretty simple, and you can raise it back up pretty quickly to get back to brewing.