What do you need for twins?

For those of you wondering what life is like for a single almost-40 mom who's back in school and therefore has a bunch of friends who go out all the time, here's a teeny slice of the underbelly.

Now. My dear friend Julie is expecting twins. And I know nothing about twins. So tell me what you need for twins. She tends toward the natural-parenting side philosophically.

Also, they're moving across the country in two weeks, so if anyone has tips about moving while huge or finding a new OB in a new city in the second trimester with twins, let that rip, too.