Not a lot, only two.
I have a pet rock named George and I almost kept a plant alive for a month once ...and I'm probably gonna have a pony soon ....I'm expecting one by fedex any year now.
Just one. Her name is Sadie.
I've had many over the years but only have one now, she's my best pal.
2 cats.
Just my two chihuahuas and a 12 year old fish that just refuses to go. I never moved tanks after the others passed so now it has a big tank all to itself