Two words: Free beer! Every Tuesday, Thursday and Saturday at 1:00 p.m., all drinkers of legal age can sample Summit's collection of barley sodas at the company's own bar. There is a catch, of course: You must endure a chat-heavy tour of the swelling Summit empire. Tour guides narrate the history of beer-making from the birth of agrarian civilization to today's overabundance of microbreweries. Fidgeting is kept to a minimum by the prospect of three beer tokens at the end. And even the most brain-dead barflies will learn a thing or two about their favorite intoxicating liquid as they peer into Summit's giant, gleaming brewing bins and towering steel fermentation tanks. You don't have to sign up for the Tuesday and Thursday tours, but the Saturday tour requires a reservation. Also, since the Summit elves only work weekdays, Saturday tour-goers will not get to see the Laverne and Shirley bottling line in operation. Still, where else can you get free beer three times a week?