Bay seniors are remarkable. Somehow they manage to afford to live here. One of our secrets is the trove of discounts available. On the ever invaluable Goldstar, SF Symphony tickets can be grabbed for $10. SF Opera offers tickets for seniors for $30 on the day of performance. At ACT seniors 65 and over may purchase 25% off tickets for any available performance in advance. Half-price day of show tickets may be purchased over the phone. The DeYoung offers tickets for $7 (reg $10) At Berkeley Rep seniors 65 and over save $10 on tickets in sections A and B one hour before each show, based on availability. Cal Performances is not quite so generous, just $5 off single ticket prices. Anyone out there know of any more geezer deals?