I kinda wish I had a second cat.
Sometimes I worry my apt is really boring for my fuzzy son while I'm not here or busy with something else. It's kind of hard to provide enrichment - he mostly just... eats posts and carpeted things, can't climb very well (arthritis), etc
Also never seemed to have much interest in watching things out the window.
I think I'll definitely try to get a pair (maybe siblings?) for my next batch of cats. Between his litter box issues and eating habits (and prescription food) I don't think introducing one now would work