The only game I have active on my computer is Battlefield 2.
I wish I had more time playing it... but alas, RL is demanding quite a lot of my spare time these days.
Hence it can take 1 or 2 weeks between each session.
The consequences is getting a little rusty BF2 skills. It usually takes 1 or 2 rounds getting creamed before I finally make some decent stats.

The upside is, the game never gets boring. The best buy I ever made.
I had a fun session this weekend on a local server (ping of 34) with relatively few players on the Wake Island 2007 map. All players averaged around 100 points and I received a couple of badges and ribbons in that one round.