The old real estate adage is that it's all about location, location, location. And so it is with the real-estate upon which farmers markets sit. After all, the very same vendors often hawk their wares at numerous different locales. But it's always appreciably cheaper at the Alemany Farmers' Market, which is open on Saturdays from 6 a.m. until 2:30 p.m. and is on a scrap of land in the shadow of Highway 280 where a swap meet holds court the following day. With the money you save, you could come back on Sunday and splurge at the garage sale.