However, it's always appreciated especially if you think she went above and beyond in her service.  Do a search for 'tipping' on this board, or the general discussion board.  BTW, I don't tip ever, but I do give gifts.

I think it's unnecessary, unless the provider gave you something that was not on the menu, or went more than 20 minutes over.

before tips, while the bill you pay all goes to the restaurant. Your payment all goes to her, so there's no need for a tip.

Although obviously more money is always appreciated, it probably isn't going to get you any better service. It's been said many times, the best way to show your appreciation is to book another appointment.

It's interesting that nearly every site I look at, be it provider or agency mentions that tipping is never expected but always appreciated. When I began to hobby I wondered if the notice about tipping wasn't a secret code way of saying you should tip but it's polite for the ladies to say that it's not a requirement. Since then nothing has ever happened to make me think that tipping is indeed expected but you just don't acknowledge it. (Kind of like never mentioning the donation when you arrive for the session.)
I have tipped but usually don't. I always bring something for the lady. Often it is very simple, not expensive but something I know she likes. I don't consider this a tip. It's just something I do because I like the lady. With a first time visit it's an ice breaker and shows I took just a bit of time to find out a few things.

So don't tip unless you want to. It isn't necessary. It isn't necessary to take the ladies little things either. Follow the requests on their web site. Be clean, be respectful, and by all means Have Fun.

There is one exception...  a certain FBSM provider, once I had seen her a few times...  let me know that extras were available including FS.   She expected a "tip" for the extra services...  but would not specify an amount or even discuss it.  It was VERY awkward.   I suppose she thinks this protects her from being stung.  To this date we do not discuss $$, I just leave it on her dresser as I redress.
In the end, I added what it took to equal what I would have paid anywhere else.   The thing is, after several years, she remains a Favorite & I see her when ever I am in her area.   Since I set the rate, I am obligated to gift the same amount each time.    
I suppose some might choose to be a cheapskate....  but I don't recommend that if you want to continue to see her.   Because I have been fair with her, she will change her plans to accommidate my schedule.   While our play time stays within the scheduled time, often we get dressed (more or less) and share a snack or meal.
H

to be on time,
be clean,
do your homework as much as possible so you can follow any instructions she may have,
have the correct donation separated
be respectful of her time (do not overstay unless invited)
treat her always in such a way that she will want to see you again

Here is a link for tipping other services

tip = Rubber Biscuit in the 5th at Hollywood Park