Lots of lying down or sitting with feet elevated for feeding. Wear leggings and tops, then you've got daywear you can comfortably go to bed in. Have little strolls with pram to keep things ticking over but nothing too strenuous as you'll feel tired and not quite yourself for a few weeks.
Lots of fluids for you, easy to forget, but I used to try and take a drink and have one with each feed, not always so easy when bf ing in a continuous loop! But bring a bottle of water, or whatever, to your fav feeding place.
Take the time for a shower each day, it will make you feel better.
I bought arnica tablets, not sure how effective they were, but why not?