My bag is pretty much the same as Peachys. I have a toiletries bag with mini shower gel, toothpaste, deo and a water spray in, plus a pack of two toothbrushes, you have no idea how long you may be in labour and DP/H's smelly coffee breath could really make you hurl
I have a pair of maternity jeans(that I grew out of at 7months) and a baggy top to wear home, slipper socks type thingies, a light dressing gown, couple of nighties for in labour, plus some pj's for after, maternity pads, (x2) breastpads (one box) towel, pen, papaer, book, bottle of squash, flannel.
I think that's it.
Oh and for baby, a couple of babygrows, vest, a cardi, a hat, a blanket and some mittens.
TLSM, bigger babies are meant to be easier to labour apparently because the gravity helps push down on the cervix. It's also said that a supported squat or on all fours is best labour position for a larger baby though, cos they open up the exit a bit better.