Girl V, at just under 23 months, is now using the potty more often than not. She has been showing interest in the potty since she was about 18 months, and we have read potty books and videos, but I think her brain has just gotten to the point where everything clicked. This has been helped by showing her the videos a lot recently after she used the potty once or twice, to reinforce it for her.
So YAY Girl V!
We gave her some of her Christmas gifts early because they were taking up space in the garage that we needed for the cars, but we told her they were because she is using the potty.