Twins necessities!!!

Brookelynn • Im having twins , due in august!!!
So I'm 30 weeks with b/g twins and Im trying to make sure I have doubles of the right stuff and enough of everything they might need!! PLEASE HELP TWIN MOMS , DID U BUY DOUBLES OF EVERYTHING ??HOW MANY BOTTLES DO I NEED TO START WITH? I HAVE 2 BASINETS, 2 SWINGS, 2 CARSEATS, 20 BOTTLES, 1 BOPPI PILLOW, AND LOTS OF ONESIES, AND CLOTHES!! WHAT AM I MISSING ??