What is your favorite feature, even tiny one, in the franchise? (Not just the "main" games!)

I do love the multitasking in TS4. Build mode capabilities improve with each new edition of Sims, which is what I do the most. I have loved building in TS4, which is probably why I could never really go back to TS3. That being said, TS3 had amazing design capabilities, since everything could be customized. I miss that, because sometimes there are furniture pieces that I like, but I hate all of their paint selections. For instance, the double canopy bed in Get Famous. There are only like two color options that I like for that, so that can be frustrating at times.