For starters, their $1 coffee deal on Wednesdays has been extended through the month of March. Any size cup of coffee is just one dollar on Wednesdays.
And, you can get a free 16-ounce Pepsi with your sandwich purchase. This offer expires March 31, 2013.
Then, if you download their mobile app, you'll get a coupon for a free Snickers bar on March 26, 2013.
Their website is also already letting shoppers know what the April freebie will be. On April 23, 2013, they'll be giving away free samples of Mio Water Enhancers.