All of it is great.
Check out Aubergine vintage store in sebastapol for great deals on motorcycle jackets. Its hit or miss, and of hit or miss sizes, but I got a $400 POLO jacket for $50. Lots of racing type gear.
Down the street, there is a Foster's Freeze. Excellent Soft-Serve.
Other nice spots include the Charles Schultz museum in santa rosa. Bodega Bay is nice too. A little farther south, you get Point Reyes, with the Station House Cafe, which is excellent.