What does your non potty trained toddler wear under dresses and skirts? I've just been using diaper covers that came with other outfits but she's outgrown most of them and 2t dresses don't seem to come with them. Casual dresses I put bike shorts under, but she has a couple of slightly nicer ones that I'd like more of a little bloomer. Can't seem to find them in stores bigger than infant sizes.