I have a question about tipping, because I am not sure how much is enough.  For example, how much you guys usually tip for a half hour appointment and hour appointment? does it go by the % of the total? Do you tip all the time? or no tipping unless its an extraordinary experience? any thoughts as a provider? how much would you expect a client to give?

I tip 50 for an hour appointment

20 to 30 for a half hour

I'd say the majority of clients do not tip, though some bring gifts which could range from candles to gift cards.  Many gals suggest what they would like for gifts on their websites.

I usually tip, and I go about $100 for a two hour session.  For very long sessions I do not usually tip.

I do often bring gifts for her birthday and/or Christmas.

If you want to look up the discussions, go to the Newbie Board and search under "tipping".  You'll find hours of reading on the subject.

.... extra is extra no matter how little. Lol this is gonna show how easy I can be to please but i've been given a $5 grocery store gift card and I was too happy lol ... got used too.  
I don't think you should unless she went beyond what you expected (assuming those expectations weren't low to start). Most guys don't tip on half-hr appts. Don't do too many of them but I can't recall a hh appt where one did .... minimum 1hr appt sure.

When I first started the hobby, I would tip in the hope that it would improve the next visit.  Over time, I realized that the tip did not improve the future services, so I currently pay only what the lady requests, and do not tip.

For the record, I tend to see ladies more than one time.  Some have been only a few time, some ladies I have been a regular over a number of years.  

I tip rarely but always bring something to the appointment from candy/wine/flowers/pastries for a provider that I see for the 1st time to something a bit more original and sophisticated for someone that I already know.

For some providers tipping may signify change in expectations for how much you should give them and may affect your future appointment if for example next time you don't tip, or tip less or substitute it for a present.  

I tip a provider I see for the first time only when she does something absolutely out-of-this-worldly and that would come in addition to my usual presents when I feel so gratified that I do it literally on the impulse and she'd know it too so she'd probably more pleased with the reaction then with actual fact of tipping (happened I think only once). Or I may give extra money to someone I see regularly, let's say, for Christmas and even then I may substitute for a more elaborate/original and usually useful (but not necessarily overly expensive) present.  

I think if one tips (which in my opinion one shouldn't unless it was really-really something), one should never tip less then $20 which is sufficient for $150 and under. $30 for $250, $40 for $250 and $50 for $250-$500. Anything over... screw the money - take her to Monte Carlo instead or rent an island in Polynesia and let her play Friday to your Crusoe

I am a huge tipper. In restauraunts, taxi, delivery, .I figure with what I make if I cant tip thats greedy.. Some people take a hree days to get three hundred. Where I can get a months rent in few fays. I got a fifty tip uesterday before appt. I have no reason to need a tip. If the client is wanting too great. 550 for two hours is to me anyway. Thats almost a third my months rent. I am happy with my hourly rates and all the multiple hour clients. I had one guy tip me after I trimmed his long eye brow hairs after he showered and nose hairs. I think he needed it. They were like super long.  
Most people tip after , I would if I were a client and could afford it. BUT
 thats me, big tipper, generous person, but meanwhile I am broke all time!
Some rich people are stingy. Poor people will give you shirt off thiet back

Some one I love as  a regular, mr fisher, your alright in my book!
Xo
I look forward to is monthly or every other?
I forget but mr fisher been my regular has it been two years?
A few like him set the bar then you look forward to more like that. I had two new really generous ones this month. So . Not too shabby for ol angel.  
One got two hour tipped 150 and gifts.  
Another two hour appt fifty dollar tip.  
So to me those are good.  
I never get overnights cuz I sleepwalk and snore.

I am always happy to meet new ppl and see my old friends but a tip says you were pleased beyond your expectations. Im happy to play tip or not but its appreciated.

A tip of the hat to those who do tip, but the question seems a bit misplaced, because the question of tipping is proper when you're dealing with an employee and not an independent contractor.  To me, that's when you start thinking about tipping.  Cab drivers?  Sure you tip them - they get paid a pittance and they get to keep only a limited percentage of what the meter reads.  Waitresses?  Uh-huh - even many state tax laws reflect the fact that employers can pay them less than the state's minimum wage based on an expectation of tipping.  You tip your doorman but do you tip your landlord?  You tip the Sears handyman who comes by to fix the washing machine but do you pop a check in then envelope to tip Sears, Inc.?
I remember years ago when I used a certain agency no longer in business (and to remain nameless), I was fixed up with an older provider and offered such a low rate that even if the lady got to keep 80% of my donation it was still less (in 1990 dollars) than a half-hour with a typical B-page provider.  The lady was clearly nearing the end of her providing career but she showed me as much warmth and enthusiasm as if she wanted me to be a steady client for the next decade.  So I tipped her 50% more than the fee that the agency asked for (and it was still, frankly, a bargain date).  But if a lady is self-employed and asking an hourly sum that would require, for me, a full day's work (before taxes), I don't feel that any expectation of a tip is reasonable.  If she does offer extraordinary service and I've got the spare dough and I'm so inclined, I will (and have) left tips of a Jackson or two.  But my expectation, if I'm visiting a lady and bringing a donation of 250 roses to spend a pleasurable hour with her, is that I'm going to have an extraordinary time with the lady.  Because, speaking for myself, 250 roses is a heck of a lot of flowers to hand someone, and if all I get for that is "ordinary" service, maybe as the client I'm the one who deserves a tip.  What I mean to say is, if I'm spending $50 on a nice meal and the waiter's attentiveness makes me enjoy the meal even more, I will gladly tip $10 or $15.  But if I'm visiting a lady and expecting to spend some intimate time with her, I kind of expect that I'm going to have a very, very enjoyable time during the entire hour, so it would have to be very extraordinary indeed for me to dig even deeper into my pockets to offer an additional tip.  In 30 years of mongering I can think of a total of 3 occasions on which that happened, but even in my middle ages I still hope to be pleasantly surprised by the next lady I visit.