Send a message to your Valentine with a little help from Commonwealth. Super-sized sugar cookies are the perfect medium for a love note (sweet in every sense of the word) and the Kendall Square spot is selling them for $6 apiece, decorated with sentiments both romantic and risqué. The cookies are on offer in the Commonwealth Market from Thursday, February 9th through Tuesday, February 14th, so you can stop by and craft your cookie missive. For large orders, call ahead at 617.945.7030.