We went here all the time because they had the cheapest money exchange and some of the cheapest water and other drinks in town. Seems silly to worry about the price of bottled water, but if you're on a budget it can be helpful. Also the owners were very friendly.
AND the best sandwich lady in town is right outside. If she says "Good for you, good for me" a lot - you are at the right place.
Small village shop, you'll find the basics here while travelling.