I had my baby down in my living room. The midwives and my OH were watching TV while I laid over my ball having contractions. He made them sandwiches and we all had a bit of a laugh and a chat throughout. It was lovely! I wouldn't have minded a pool but we'd just had new carpets so didn't want to risk soaking them!!
For the floor, we just had an old shower curtain and some of the maternity mats (from boots)I was using on the bed in case my waters broke - which they did!! The midwives supplied some too.
I had a tens machine, which I put on as soon as the contractions started so that I could get used to it and it really worked. My only advice would be to breathe in through your nose and out through your mouth on each contraction, listen to what the midwives tell you and enjoy it!! I loved mine and would do it again tomorrow!!!