I also have larger norks.
I read once that if you can hold a pencil under your breasts then they were officially droopy... I can hold the TV remote control, so what does that mean?
About potty training. I left my DCs till they were nearly three before I even tried, with about 4/6 weeks of talking about 'when you are older/a big girl(boy) you will use the toilet/potty'.
I found they both did it practically overnight and it was all very easy and stress free as they were more than ready. That little extra bit of maturity really helps iyswim.
DD was then dry at night about 2 months later - I waited for her to ask me to stop nappies, with lots of similar talk about when you are older you won't wear nappies etc. DS on the other hand continued to wear nappies at night till he was just over 4 and half. Again I waited for him to ask if he could stop wearing them.