Rum and Coke my friend….Rum and Coke. Otherwise known as a cuba libre (more lime juice is usually involved though). Travel to any bar and order one it will cost you at least twice as much as what you can make one yourself.
Gathering the ingredients is easy. There is hardly a country on this planet that doesn’t have readily available Coca-Cola, and rum is generally not too far behind. The hardest part is usually finding a glass in the hostel. To save yourself money, buy a small bottle of rum from a grocery store or corner market when you first arrive. Packing rum on a plane is not a good idea and it will usually be confiscated. A small bottle won’t cost you all that much if you buy local product. From there, any time you want a good drink, just go find a cold coke. If your hostel has a refrigerator that makes it even cheaper, as usually you will end up paying a little more for a cold can or bottle than buying off a shelf of room temp. I usually put about a small shot in a glass and just fill the rest with coke. If you desperately desire lime, pick one up from a local vendor as it won’t be all that much. Some of my favorite nights are just hostel bumming with fellow travelers sharing cheap drinks.