Stumbled onto a place in Tucson that does the same thing with pressure washers and their whole "we don't care if you bring it back in an hour" attitude literally saved me on a gutter cleaning job last spring. I walked in, grabbed the machine, did my thing, and was back before the paint dried (okay, not really, but you get the idea). The guy at the counter even knocked off the first hour because I was in and out so quick, which I thought was super cool. It honestly makes no sense why more places aren't doing this, because I'd probably rent way more often if I knew I wasn't getting stuck with a full day charge for a 45 minute task.