Hi Guys, I will be a 'newbie' to Koh Samui this September. Accommodation booked (B&B) but I don't know how much spending money I might need..... How much for simple dinner for two? How much for a beer or a Bacardi and coke? etc etc. Everyone is telling me to have lunch from the seller on the beach but I will have no idea if I am being ripped off! What should I expect to pay on average?