My kids love bowling, and last summer used the passes they got at school for free games during the summer. The program is online now, and you don't need to rely on your school to dole out the cards.
Register online for free bowling - which is good every day through September 13, 2009 (hours and ending dates may vary depending on location).
Bay Area locations include Daly City, San Mateo, Palo Alto and South San Francisco. Modesto is included too.
You'll get coupons mailed to you each week after registering or you can just log in to print them off.