Definately buy your beer by the case at the beer distributorship. It's MUCH cheaper than buying out at clubs. You get a significant amount of $$ back when you turn the bottles in as well.
Any US brand of grocery item is expensive. Some of the items are much cheaper if you don't buy US brands. Eating out can be very economical, and BBQing your fish you caught helps as well. We took our fish to a little restuarant called Amergris Delight and they prepared it for us 4 different ways for 12.50 BZ. What a bargain. We ordered rice and beans on the side and had a fabulous dinner for 4, for about $9!!!!! (US)Can't beat that with a stick. This same place also has FABULOUS pizza (conch included) and they deliver!!!!! Belize it.
Debbie