In celebration of National Bowling Day, register and get a coupon for a free game of bowling at participating centers on August 11, 2012. You can also try the direct download link here. Valid for a free game up to $6 value. Limit one free game of bowling per person, per valid e-mail address, per coupon. (So bring multiple printouts in case.) Check participating locations here.
Also check out KidsBowlFree.com and the AMF Summer Unplugged Free Bowling for Kids summer promo for more free game time. Lanes are closing left and right around here, hopefully my kids will still get to bowl. I remember when games were 99 cents!