Thats a good idea. I tried pull ups but i think they feel too much like a diaper he would just go potty in them. By the time I got his pull up off he had just went in them.
I just kept underwear on mine! There were accidents I won't lie! But they don't like the feel of dirty underwear, we also did m&ms if he used the potty in time and at first I had to tell him to go get on every 30 minutes