Let's hope you didn't give up sugar for Lent. This week Yelp has partnered up with sweets pushers all over the city to brighten your smile (while destroying your teeth). Participating shops, many of them SFoodie favorites, are offering deep discounts on some of their most treasured treats between Mar. 21 and 27. Highlights include half off the irresistible sandwich cookies from Sweet Constructions, half-price shortbread minis at Batter Bakery, and discount pies and pop tarts from Black Jet Baking Company. You can also grab some half-off rugelach for your Purim basket from Noe Valley Bakery (though sadly, the fig bread is full price). Even old-school Cinderella Bakery is part of the action, even if you tend not to think of beef piroshkis as sweets. Check out the full menu at Yelp and you'll be mainlining Mission Minis by the end of the week.