Oh, there's a room in the basement now. It contains various items that correspond with club activities, toilets, showers, tents, a fridge, etc. Some Sims will be spending a LOT of time down there. Ahem.
These are elderly Sims. Two are the founder and 2nd generation heir, the heir's twin sister (who should be dying soon except that I gave her the active trait--what was I thinking?), and the heir's wife. I've currently got over 100 Potions of Youth, so there's not much call at the moment to get more points out of them; they've outlived their usefulness. I got them all M-F jobs (whoever thought of that idea is brilliant), but they are home on the weekends, so they'll either be spending their weekends away at camp, or they'll be in the basement when they annoy me.
It seems to me that Sims would stay with an activity longer in the past. Now, sometimes it's literally seconds and I am tired of watching them run from one area of the lot to another constantly. I kind of miss Sims 2. Sims could get so obsessed with an object they could DIE, but at least they weren't running around like hyperactive gerbils. I was playing an ISBI once and I had a Sim die because she just kept swimming and swimming and swimming. Good times. Also, in TS2, Sims could meditate indefinitely, not this two hours and then they're bored nonsense.