Most people prefer the smoothie—which turns fruits into irresistibly silky beverages—over its competitor, the roughie—which transforms fruits into hardened criminals. Go the smooth route with today's Groupon: for $8, you get $16 worth of smoothies and café fare at Tropical Smoothie Cafe. Choose from five area locations.

Staff members at Tropical Smoothie Cafe whirl blenderfuls of healthy fruits into eclectic smoothies and transform fresh veggies into a full menu of salads and wraps. A mix of pineapple, orange, and nonfat yogurt imbues a Hawaiian Breeze with 24 ounces of sweet and tangy flavor ($4.29), and the Sunny Day smoothie ($4.29) blends a fusion of mangos, banana, orange, kiwi, and a poem about waterfalls. Patrons can also chase libations with savory wraps such as the Jamaican-style jerk chicken ($6.49), or the Totally Turkey ($6.49), a classic combination of turkey, lettuce, tomatoes, and a an affirmation written by Mom on a post-it.