Just a bit of advice from a STM: Along with buying postpartum belly bands and considering your postpartum wardrobe, you might find it very useful to have a detachable showerhead handy as well. If you don't have one, it wouldn't be unreasonable to go buy a cheap one to switch out (or have DH switch out) for a few weeks so you can thoroughly clean "down there" postpartum. Lots of stores (such as Walmart) do have something you can quickly attach to the tub faucet and use in a similar fashion for about $10 if you don't want to be changing things around in your bathroom.
Re: Advice: Postpartum & Showerheads
(sorry about the bad pun...I couldn't help myself, hehehehe)