This might sound odd, but my hospital suggested bringing a tennis ball, or rolling pin for back contractions. Feels great when something firm is rolled across your lower back. I also had gel-filled breast pads with me but they weren't needed till I was home anyway since it took 7 days for my milk to come in due to all the disruption to the bonding and BFing process.

I like the old fashioned handkerchief idea too. If I think of anything else I took which was weird and wonderful, I'll let you know,lol. Oh and Ican't reccomend having your own pillow enough. Hell, take 2! I was hiding pillows in my room because the MWs said I could only have 1, but I was in so much pain, I needed more to keep me comfortably propped up. In the end I had 4!