Two are enough for me. They take a reasonable amount of caring for, and cost too, so between them and a toddler I can't take anymore.

Unless you live in a stately home I think 12 is horrible. The place would smell no matter how much you clean.

I have two cats. A friend of mine has around 6 or so, which I think I could live with.

It depends on if they're indoor or outdoor cats as well. An ideal number for me would be 2-4.

I would say more than 3 cats would be too many.

I can see for sure that them being outdoors animals would make things easier. But still-I always like my cats to be inside at night-time and that's a lot of cats to have to house.

Had 3 together, but now only 2. It's a personal decision, although maybe in double figures in a suburban semi might just be pushing the numbers. But if you can house and feed them properly and pay the vet bills, then it is up to you alone.

hmmm, good question, myself, I love cats. So it would be hard for me to say what number would be considered too many. I have had 4 cats and 4 dogs at the same time. As long as they are all fed, watered, potty trained and loved daily it shouldn't matter!