Several people have suggested to go naked. I haven't taken their advice yet because of convenience, but we went for it last week!
She was only allowed panties AFTER going potty and no accidents.
We also decided to hit where it really hurts.
If she has an accident, she loses her temping princesses and her dress-up.
She can't play with princesses or BE a princess. Poor girl!
We still have an accident now and then we're not nap or night trained, but she's telling US when she needs to go and I'm backing off on nagging her to go. She doesn't pee that often. I keep thinking she needs to go more often and then remember that I myself only go about three times a day. TMI?
Anyway, we're doing well and I (who am the major consistency problem, I admit!) am doing well at following through. I think that's the biggest thing. When it's gotten tough or even gone well, I'll relax a bit and then disaster follows. So we're doing better!