Carrie's actually used the potty a few more times in the last couple of days! I didn't think it would catch on very quickly, but I think she's getting to be very much aware of it now.
This morning when I got her out of bed she told me she was "poopy" (which to her, means anything in her diaper, wet or messy). I said, "Ok, lets go downstairs and change your diaper." When I went to change it, it was barely wet at all so I asked if she wanted to sit on the potty. She sat down for a few minutes and actually went! When she'd told me she was "poopy", she hadn't already gone, she needed to go!
And the most exciting part, Carrie didn't freak out! She cheered with me! Yeah!!
Then later during her bath she stood up, crossed her legs and started yelling, "biaper! biaper!" because she was peeing. I grabbed her and ran to sit her on the toilet. She was dripping wet and freezing cold, but we made it. Of course, as quickly as possible I got her wrapped in a towel and warmed up. :)
It seems strange to be so excited about something people don't really openly talk about, but whatever. I'm a mom, and she's my baby who's turning into a little girl!