I'm not a tipper.  But what I will do, whether she's agency or indy, is not take the discount for booking through P411 or D-C.  I'm sure $25 or $50 means more to her than it does to me.  I will also not pay a grandfathered rate if it's under $100.
But mainly, repeat business is the best reward.

for every lady who provides a good date.

Generally when they are charging 350 or higher, I do not tip.

Keep in mind that agency ladies keep only 60% of the actual rate so adding an extra $20 or whichever your generosity calls for, and provided she met or exceeded your expectations will certainly help her, specially if they are touring being that most agencies do not cover travel expenses and the lady has to fork hotel, tickets, meals etc...

-- Modified on 9/28/2013 1:58:53 PM

How to you make a hooker moan?

Don't tip her