Lulu - That's a good point about having them both in the pram to keep track of them!

Thank you all for your advice so far. It is very helpful. I know I"m going to just need to see what DD is like when(if) the time comes, but it's nice to hear other's experiences. It's amazing to think that DD could be ready for a 'big girl' bed later this year!!!

EDIT: Kazzo - we posted at the same time. Thanks for the info. I would like it if we could get away with the one pram (esp when it is just me). It's nice to hear from a few of you that it could be doable.