Mojitos, anyone? I make mine with Bacardi (two shots or so), soda water, fresh mint crushed in a mortar and pestel, half a lime, and just a wee bit of sugar. You can get the mint and limes much cheaper at an Asian supermarket.

Other great things to buy at Asian supermarkets: tofu, noodles, pre-packaged lunches, dishes, and most kinds of fresh produce.

Best place in Georgetown for mojitos: Cilantro's. They have five different kinds of mojitos on the menu, plus awesome happy hour specials on weeknights that run late.