I picked up a potty chair two months ago just so LO could get use to the idea of it, and she's finally showing interest. She's telling us when she has to go and in the last 3 days has only peed once in her diaper (overnight). The first couple days I was wondering if it was a fluke because I wasn't sure if she was ready, but last night she asked to go potty and went both #1 and #2! Now should I go pick up some Pull Ups or go straight to training underwear? Do I still use diapers overnight and at nap time? I have a whole box of diapers left so it's not like I'll have to go buy any just for overnight or nap time. WWYD? And TIA!