Christian this the summer of free food. But unfortunately summer is winding down.

Luckily you still have a few more weeks to get your fix. Here's a rundown of the three best giveaways that Thrifty Under Fifty has highlighted, along with their expiration dates:

• Free Mocha from McDonald's: Today, Aug. 3, is the last day to get your 7-ounce iced mocha or 8-ounce hot mochas. The drinks are available for the asking between 7 a.m. and 7 p.m. at participating McDonald's.

• Buy-One-Get-One Free Sundaes from Ben & Jerry's: Every Monday through Aug. 31 at a Ben & Jerry's scoop shop, with coupon.

• Free Mars Candy Bars: Register online every Friday through Sept. 25.