My nappy bag isn't as big as I'd like... probably a good thing as it keeps me from over-packing it, lol.

I have;
- nappies - 3 or 4
- wipes
- nappy sacks
- cloths for spits
- a zippered plastic bag with a full change of clothes, singlet, suit, jacket & socks
- a little zippered bag (like a makeup bag) with my stuff - lip gloss, spare hair ties etc - so I don't have to dig for them
- a spare wrap
- spare dummies
- her red book (health record)

thats' pretty much all we need for general outings. I fwe are going somewhere for the entire day I will maybe pack a separate bag with extra clothes & nappies, a rug to lie on.
The nappy bag has a change mat but we use it on the floor downstairs, so it's not usually in her bag