The best thing that happened to my garage is my shed. My garage is usually pretty clean and organized, my shed is basically a mess, and full of all the crap that I would have to arrange nicely in my garage (yard tools, snowblower, etc etc etc). If I were ever to build a standalone garage (can't on my lot now), I'd probably configure it with a room that opened to the outside that was separate from the main garage to store all the lawn care stuff, etc, that I wouldn't want cluttering up my work space for the cars.