Like cereal and milk working best in tandem, scotch and adhesive together form raucous office-supply-store parties. Celebrate combinatory concoctions with today's Groupon: for $5, you get $10 worth of goodies from the teamed-up storemates of TCBY and Mrs. Fields.

TCBY (a.k.a. The Country's Best Yogurt) serves 96% fat-free yogurt, which contains benevolent bacterial cultures that assist the body with digestion and nutrient absorption. Savor an assortment of silky soft serve flavors such as golden vanilla and white-chocolate mousse ($1.99–$4.19), or sip on a succulent smoothie—a coalesced concoction of real dairy and blended bushels of fruit. Chip away at cookie cravings without resorting to dressing as a fuzzy blue monster with Mrs. Fields' chocolate-studded favorites (nuts optional), such as milk chocolate chip and chewy fudge, or try butter toffee, cinnamon sugar, and peanut butter ($1.79). Brownies come in similarly spectacular specialty flavors, with classic fudginess at the dark, chewy heart of each treat ($2.69).