I have had two previous vaginal births, so here are some ideas to help you manage your labour and birth. Heat packs are a great idea (safer than a hot water bottle), just heat them in the microwave for instant heat that lasts for up too two hours. Positioning can be great to. I found that being in the shower standing with water on my back and front helped heaps, and leaning on all fours rocking my pelvis. Aromotherapy can be good but can also make you nauseas (personal preference). People always say soothing music, well if rock and roll makes you relax and happy then go with what ever music makes you relax. Can I offer some advice for the birth, squatting is very beneficial as gravity assists you and it creates less stress on your perineum, you may wish to ask for some warm to hot face washers to be placed on you perineum as the babies head crowns to help you through the foreign sensations.
I hope I have been useful to you.