Right now, I have three dogs, two of which are senior dogs. One of them is much younger, and just a little larger, although she is probably not a lot over 10 lbs either.
So I don't really want to get another dog, unless one of the older ones dies, and then I might or might not get another dog.
I have really thought about getting a cat though. I have loved cats, and had a cat for most of my life, but my husband does not like cats at all, so I up gave away my two Persian cats right after we got married, and haven't had a cat since.
However, we live out of town, and quite a ways off of the main road, and I don't see any reason why I could not get a cat, and it could be an inside/outside cat.
This is the time of year that mice want to come inside and be warmer, and Tootsie, my little a heeled mix has caught 2-3 mice, so I think that having a cat around to actually hunt these mice would be a great idea.
I haven't talked my husband into this as of yet, but I am working on getting a nice cat one of these days.