That's what I do as well. I switched to JCLPCB from Dirty PCBs and am pretty happy, but I was pretty happy with Dirty as well. They give me ten 10x10cm paneled boards for like $15, and because I design tiny boards I get around 100 of them in the end, which is 99 more than I reasonably need. It's so cheap, though, that it's not worth doing anything else.