5 minute blunders

I don't get to play much OTB these days, with work and travel and the fact that my friends just dont care. The other half of the problem is that I've always been more attracted to 5-10 minute games, all my tournament successes came at short time intervals. They only reason I can think of as to why this is, is that my pattern matching skills are better than my concrete calculation skills. If that is the case though, I dont see why (especially recently) I seem to be making silly blunders that you wouldnt expect of anyone whos played the game for any real length of time. So how do you improve your blitz games other than by just playing more blitz games?