Keeping up

I was fixing Hannah's hair yesterday and asked if she wanted the purple or pink hair band on the first side.

"Purple, because it's my favorite color."

I was somewhat surprised, because I hadn't realized purple was her favorite color. So I said as much.

"Oh, it's been my favorite for a couple of days. After a couple more days, pink will be my favorite color again. Then it'll be back to purple."

I think I'm just going to have to ask her what her current favorite is, I'm not sure I can keep up with when it all changes!