It's that time of year again, and what great weather for gobbling down a free Ben & Jerry's cone. Help them celebrate 31 years of "scooping the chunkiest, funkiest ice cream, frozen yogurt and sorbet." Check out their new flavors and old favorites, and decide what you want ahead of time. Here's a list of all participating locations in California. Participating San Francisco locations are Macy's, Haight Ashbury, and Fisherman's Wharf. Store hours are Noon to 8 p.m.