I have a postal vote too, by long tradition based on the fact that for local elections I leave for work before the polling stations open and don't (didn't) get home until after they had closed. Not the issue for General Elections of course but once one is in the habit it's easier to leave be. So yeah, I've voted. I'm trying out the 'if everyone who thought their vote didn't count went and voted anyway' strategy to see where that takes us.