OK, so here's a stupid question: How do you clean & degrease an engine (and the rest of the bike, for that matter) without leaving a big stain in the driveway? I don't want to do it in the grass since the cleaner will kill it, and my water hose isn't long enough to make it to the street. I could just simple green the whole thing in my garage with some cardboard or paper under it but that would take forever. So, washing tips?