Good breastfeeding tops - eg button up, cause you never know who will turn up in the middle of a feed and you can feel much more comfortable and discrete with a few buttons undone rather than your entire top yanked up over your boobs.

I also needed my breastpump as i was doing a lot of expressing and the hospital one wasn't always available - so maybe have it steralised and ready to go at home for your DP to bring incase you need it.