Yes you can and some do it all the time. It's actually 24 days (10 off plus 2 commuting days) plus you can tack on vacation days to it, if you want. You get the 2 commuting days regardless of wether you commute or not. For example in my case, I mix and match all the time. Sometimes I take 12, sometimes 14, sometimes 16, 24,28 and so on.