I played quite a lot for the last half year, until I got scared when I started looking at my /played and think about what I could have done in that time. With a double course load and a full time job coming up this semester, I knew I was going to be in trouble if I kept up the pace I had. In contrast to what many others say, I don't think cold turkey is necessary, but you do need some outside assistance - going at it by willpower alone is hard. I asked my girlfriend to set up the 'parental controls' functionality and set a hard limit of 4 hours a week. When your game time is up, you get kicked out. Clock is reset on Sunday night, so Monday evening is usually my game night, rest of the week I just check wow.com sometimes or do some occasional research on gear. You'll never get far in the game at this rate but if you get someone to check your gaming habits it's very doable to keep control over it.