good posts- now I will cover how to play the game and win. Newbies pay attention, seasoned mongers- yawn if you must.
1. The girls in the Del Rey are pros, remember this at all times.
2. Always pay in colones, not in dollars, remember the chicas can calculate the exchange rate faster than you can, faster than the hotel reception area in the hotel that you are staying in, and faster than the National Bank.
3. When a chica says " Hola Mi Amor", what she is really saying " hello my walking new ATM Machine". laugh when they say that, it is part of the game.
4. Negotiate all deals up front, and NEVER PREPAY FOR SERVICES RENDERED.

Also if you agree for services rendered and the chica starts making excuses- THE GAME IS OVER< IF YOU ARE SMART, Firmly, but politely ask the chica to get her clothes, her cellphone, her purse full of lubricant. ( if it is early in the night, she needs to lube up for the guy she will be with 30 minutes from now. Remember she will be back in the bar faster than Marion Jones can sprint), this is why you must pay attention to the first sentence of this paragraph.
5. Do not carry a wad of cash with you anywhere, carry enough for a few drinks and enough to pay for the chica. Always use the deposit box in your room, and remember where you hid the key.
6. DO NOT GET SHITFACED WITH A CHICA, BAD MOVE ALWAYS.
7. They will always ask for a propina, that's a tip for you non- bilingual mongers. Only tip if the service was excellent.
8. Even if things have gone well and let's say you did have a great GFE experience with the chica and let's say it is morning and it is time for chica to leave,and she gives you her cellphone number ( you are among many), and you makes plans to meet her later in the day, perhaps she tells you she wants to go to the mall San pedro, or Multiplaza ( bring money there, not cheap) and your not thinking with the head on your shoulders at this time, but the head bewteen you legs that probably looks like a seahorse( because you nutted multiple times only 4 hours before and the blue pill that the experienced monger gave you and said only take half of it, but you took the whole 100mg). This is understandable, you just had a great time, your a little hungover, your body is tired, but you have a beautific smile on your face, almost like you have had a spiritual experience etc....
Pay attention, this is the time that you are most vulnerable. Remember Paragraph #1 of this tome, and Remember # 3 of this tome.. This is when the experinced DEL REY CHICA lures you ( really your wallet , ATM, and Credit Cards) in, like an Octopus. YOU ARE BEING HAD, GET OUT NOW BEFORE IT IS TOO LATE.
DO NOT FEEL SORRY FOR THEM, DO NOT PAY ATTENTION TO THE BULLSHIT STORY, DO NOT PAY ATTENTION TO HER PROBLEMS, ( HELL EVERYONE HAS THEM), AND WHEN SHE SAYS " TE QUIERO OR TE AMO" RUN LIKE HELL. DO NOT FALL IN LOVE.
If you follow these points and pay attention to what the old farts are saying you will have a great time.