Ooh yes please me too @Dipsy77! I've not even got my matb1 yet so I'm behind you both. Self employed though so a bit different.
Re hospital bag YES to snacks! I'd put in chocolate for sure, and a yogurt pouch or two (the Ella's sort that don't need the fridge) for labour, and a small bottle of pop. Straw and lip balm too (gas and air is really drying. Not tried it but so I hear!). I'm generally starving anyway, so I had lots of things like little bags of nuts and raisins and stuff which were so helpful when I was in for a few days with DC1, and still really useful at home with DC2 who I was only in with for a few hours. Lactulose the hospital provided. I wouldn't bring formula as either the hospital will provide, or it's not a bad plan to stay in until you are up and running feeding, assuming your hospital has decent support (ask local friends). If they are a bit crap then look into other support now (la leche league, separate "breastfeeding cafes", NCT are good places to start) as a crap hospital can make it all much harder.
I've not started packing mine yet either, going on holiday in a couple of weeks so it's my first job when we get back.
@Stroan re weights DC1 is a boy and was a bit over 10lb, DC2 is a girl and was 8.9 I think- titchy for my family! But yeah I'm only bothering with size 0-3m clothes. Really glad to hear you are feeling a bit better re weights. Big babies often have easier starts I reckon- less likely to have mouths too tiny to latch on etc.
@IVEgottheDECAF woot woot re pram!!!!