This isn't just tonight -- it's for all month -- but it's so cool we're making it the pick of the day! Bank of America customers, you can flash your ATM card or credit card and you and a guest get into a bunch of local museums for free, free, free! (Wells Fargo card holders, you'll have to pay not only admission but also a $2.50 service charge. Kidding, kidding.) Offer applies to the SFMOMA,......