I'm at the stage where I'll walk into a house and think "Oooh, I can build this!", see an outfit and go "I'd like those colours on a Sim!", meet someone and think "You'd be cute as a Sim!", get invited out and think, "Ooh, I'll wear that cute little dress that I got when I... installed Generations,
you idiot", and so on and on. Whenever I see a pattern or design, the first thing I do is to count the colours because you can only have four in CAP.
Everything comes back to The Sims. I think it's what you call "The Tetris Effect", only for Sims. Dearie me, I think I need to head back to the Sims Anonymous thread.