Vintage Bank Antiques
Housed in a former bank, built circa 1926, this is your if-I-could-only-go-to-one-antique-store-ever spot (pictured above). Extensive art, jewelry and furniture collections, as well as books, knickknacks and rare finds (not to mention the opportunity to shop in a bank vault) make this a must in the downtown area. 
On-the-scene: My sister found large brass candlestick holders so great she was willing to lug them back on the plane.
Address: 101 Petaluma Blvd. N
Good to know: Don’t miss the downstairs.  

Lombardi’s Barbecue & Deli
Serving up all things barbecue (tri-tip, ribs, chicken and more), sandwiches and traditional deli sides, this favorite-to-locals spot is family-owned and features big portions and friendly service. Outdoor seating available.
On-the-scene: This has become our regular lunch spot when in the North Bay.
Address: 3413 Petaluma Blvd. N
Website: lombardisbbq.com
Good to know: Oysters are served weekends only.

Petaluma Pie Company
This tiny shop–a certified Green business–features sweet and savory pies, and showcases ingredients from Strauss and Cowgirl Creamery, as well as produce bought directly from local farmers. Cream pies include butterscotch, coconut cream and banana cream. Look for seasonal fruit selections such as nectarine blackberry, peach blueberry and strawberry rhubarb. Take-and-Bake pies available (think hot chicken pot pie out of the oven).
On-the-scene: We buy our pies early in the day and ask to have them held until closing.
Bay.
Address: 125 Petaluma Blvd.
Website: petalumapiecompany.com
Good to know: Shop early. Pies sell out.