Only purchases you need (Score 2, Insightful)

1) Diaper Genie. Get many refills now - you won't have time or energy later.

2) Small waterproof cloth pads. Cut them into 1/2 baby size pieces, perfect for going in diaper bag to provide simple clean changing area that doesn't take much space

3) Lightweight books and book holder-openers, important to scatter these around the house to be available to your or your partner when you get stuck with baby in your lap and can't move.

4) clothes with no buttons for baby to wear so you don't need to muddle with them while you're unable to see your nose from the lack of sleep. meddling with buttons and snaps suck. forget bottoms entirely and just cover baby.

That's it. Anything else is negotiable.