I use a breakaway collar with a jingle bell on it while we are in the house. Shhhhhhhhh!! It's a cat collar, but we're not telling Molly that!!
After almost stepping on her a few times, it helps us keep up with where she is in the house. And since it's a breakway, I don't worry as much about her getting caught on something.
I do use a collar and leash for quicky potty trips, but we got there and straight back so there's no pulling. We use a harness for walks.
Carla