Best nights to go to Postino's are Mondays and Tuesdays. They offer $20 deals where you get 4 slices of bruschetta out of the 12 that they offer and one whole bottle of the house wine. Each bruschetta slice is probably the size of maybe your hand with your fingers outstretched -- if you're a petite girl :) ... They then cut each slice into 4's. Perfect for sharing!
We went on a Monday night after 8PM and ordered 2 bottles of wine, the 2 orders of the bruschetta (which were 8 slices for those that can't count), and a bowl of olives. The total came out to about $50...that's a little over $13/person w/o tip!! AWESOME!! PLUS, they have complementary valet parking.
Everything was just fantastic, I've never had fig before and they made my experience there quite memorable. I definitely recommend you come in, regardless if it's for their $20 deals on Mon/Tues or not. They've got GREAT food and I WILL be back.