The one thing that I've had a hard time to get used to is bargaining. I read that no matter what price they tell you, you should only pay about 25% of that. I went into a shop to look at a sun dress and I asked the woman how much it was. She picked up a calculator and punched in "300." To pay six Euros for a sun dress isn't that much, but I assumed that if I'm supposed to only pay 75 bhat (about 1.50 Euro), I should try to bargain a little bit.