Seniors, to put it frankly, can be absent minded. So this is a reminder to you about the spectacularly private photography museum open on Pier 24, mentioned here last year.Their current exhibit, through December 16, is a homage to the Bay Area with a stellar list of contributors from the past 125 years including Muybridge, Arbus, Misrach, Weston, Lange, Penn and Sugimoto. Small tours by reservation only from Monday to Thursday. Free. A blessed alternative to current SFMOMA and de Young shows that are packed tighter than 880 at 5:30.