I echo what others have said about breast pads/leakage. For me, "leak" is really the wrong word. "Spray" would be more accurate. I do have one close friend who never leaked at all, but the rest were all pretty leaky for at least a while. For me, the leakage actually lasted months. I never wore a bra to bed, but wore a t-shirt and had numerous folded cloths near by for the side I wasn't nursing on. So very messy.
Other post-partum stuff...
I too have terrible reactions to disposables. I found the more natural ones the better (don't remember brands), and I just changed them very often.
Sitz bath - awesome. I had a blend of dried comfrey and witch hazel which I steeped for 10-15 minutes, and then kept cool in canning jars. I ended up at the hospital after my birth, so I just brought home the sitz bath thing from my room. I also kept some in a little spray bottle by the toilet so I could use that after peeing. Very soothing.
And I also found that lightly soaking a small pad in store bought witch hazel was soothing (a friend who had hemorrhoids said it was miraculous).
A big thing for me - every time I sat down to nurse I was *fiercely thirsty. So stashing bottles or glasses of water in any likely nursing spots is a great idea. Snacks too! Just get your partner/support people to keep your stations filled up!
And speaking of food. I had friends organize a "meal train" for us: http://www.mealtrain.com/
If you're in a community of people who like to cook and eat like you, I can't recommend this enough. Friends/family can sign up for particular days to bring you food (we had family take care of the first week, and asked one friend to coordinate once the baby arrives with dates starting the second week). You can specify dietary restrictions, time of day best for delivery, and a friend can clearly state "Please just leave meals on the porch. The new family is deep in baby moon, and looks forward to visiting once they're more settled in a routine." Or something. Life saver.