what's in your delivery bag?

La
I hate over packing and I hate to not be prepared. So far, I have nursing bras, breast pads, underwear, pajamas, makeup, an outfit for baby and a few onesies. 
What am I missing? I'm sure there's a few things. Do I really need burping cloths and other stuff typically provided by the hospital (i.e.: pads, diapers, rash cream, etc.). Do I really need onesies or wil they clothe him?
This single FTM thanks you!