I first visited Sweet Boston a couple of months ago, on a cupcake mission. Sweet features delicate mini and full-sized cupcakes in flavors from standard vanilla-on-vanilla and red velvet to cappuccino and Boston cream pie. My personal favorite--the super-moist and cinnamony carrot pineapple (sans nuts!)--comes with a heap of silky cream cheese frosting. Trust me, I know my frosting and this is the real deal. Is $3.25 still too much for a cupcake or just have an intense frosting craving? Get a frosting shot for 25 cents and coast through the day on the ultimate sugar high.