I would also say ditch nearly all of the baby stuff, I thought hospital provides most of that... but as Evie76 says her hosp doesn't provide anything, it's best to check. If they do provide stuff it might be better just to pack the nappy bag for going home.

I don't think you can really over pack for yourself, especially clean underwear & stuff! I'm one who would rather have too much & not need it, than not enough.
I agree though that you shouldn't need the water (& it will be a PITA to lug around).

One thing in my labour bag is TWO pairs of socks... in case my waters break on one pair
And our camera uses batteries, not a charger, so I am buying batteries to keep in the bag ready to go.. nothing worse than getting there with flat batteries & I don't think DH will be inclined to stop on the way lol.

Panadol & flushable wipes are a great idea & will both be added to my list!