Raspberry Leaf tea- I took the tablets with all 3 of mine, from 34 wks, and had short and effective labours (4h 40 was the longest). Not sure if was down to the tablets, but can't do any harm to try.
Never used a TENS machine- sorry, just never fancied it.
I laboured in the water with all 3 and found it absolutely fantastic. The MWs even added some essential oils to speed things up (?) I'm normally quite a private person, but for soem reason in labour can't bear to have clothes touching me, so went naked, but you could keep a T-shirt on if you are more modest! I also loved the fact I could switch position and move around really easily in the water, but felt the need to get out to actually deliver. With no 3, I realised just how much the water was helping: My contractions felt a bit weak (I actually complained that they weren't sore enough!) Then I stood up to get out the pool, and within seconds the pain had me diving back under!
Didn't have time to eat in labour, but I think it's advisable in longer labours nowadays?
RE pethidine: One of the best bits of info I got from a couple of different people was that they wished they had known how close they were to the end before accepting pethidine. For this reason, with dd1 when I felt I just couldn't do it any more and they were trying to push the pethidine on me, I insisted on "a number between 1 and 10". I had decided if I was 7+ I would soldier on. I was 9 3/4- I believe if I'd had the pethidine it might well have slowed things down and/or made dd sleepy, so i'm glad I checked before I had it- just knowing I was so close to the end gave me the strength and encouragement to carry on without it.
Didn't have an epidural- mainly because the thought of people sticking needles in my spine scares me more than birth itself, and also because I wanted to retain the option of running away
Recommendations? Try to trust your body, and listen to it. It knows what it is doing, go with it. As I said, the MWs tried to tell me I had hours to go (my first labour was 4hrs from first contraction to delivery, so they refused to believe me), but I KNEW and insisted on that examination. Don't overthink it- it amazes me what a primitive thing giving birth is, and how you seem to revert to animal instinct, and I think if you just let that happen things go more smoothly, rather than trying to stick to a plan or position that just doesn't feel right at the time.
Good luck!