I rarely do more than more booking a day, so over-showering isn't an issue, but I don't think there's any harm in using ph-balanced/feminine bodywashes. I scrub my bum and crotch with the body mop, but try to avoid the actual vulval area.
Just before the client arrives, as I've probably had a wee, I then use a small, soft bamboo washcloth either wrung out in plain warm water or a little bit of feminine wash to wipe front and back down below.
I always use moist toilet tissue after no.2s anyway, but one thing is that sometimes you can clean yourself, but 15-30 minutes later there might be a little more 'residue', hence I always make sure I'm squeaky clean just before the booking.
After bookings I often use a bit of Multigyn gel, and I use Activ Balance and Canesten vaginal probiotics about once a week.
Edit: So long as you don't smell fishy or anything else strong, it's fine!