I don't, I do something different. But other riders on the Shovelhead forum I hang out at say they work well. Specifically the Harbor Freight one. Essentially a big skate you put the bike on then you can wheel it around wherever you want, like against the wall in the corner.
I can add that I have a large amount of stuff in my garage, and nearly everything is on caster wheels. I'm able to move more crap around than you can imagine, yet still pack it all over out of the way so the wife can easily park her SUV inside. I highly recommend putting stuff on wheels!