Recently, it was a week. I told myself I had things that needed doing more than I needed to play Sims and that Friday could be my "fun" day and I could play then to my heart's content. In the past, I could go weeks without playing. Now I find I think about it when I'm not playing so much more than I used to. I think that's a result of the increased complexity of the game from Sims 1 to Sims 3, or even vanilla Sims 3 to Generations.