A big boy

I finally buckled down and decided to get serious about potty training Stephen last week. He wasn't the most willing student but we persevered. Today he is on his 3rd full day of underwear. On Monday, we stayed home and he had 3 accidents. Yesterday we were out and about all morning and he stayed dry before and after nap. One accident this morning and he's been dry since nap. Stephen is much more excited about being a big boy now, and so am I! (Any advice for nap/nighttime training?)