I just returned from a short vacation to the northern California wine country and San Francisco, and of course I had to check out some yarn shops. My first stop was at Knitterly in Petaluma. This shop has a really cute store front and a lot of unique yarns. I also like that vibe of lots-of-yarn-everywhere look.
I purchased some more Knit One Crochet Too 2nd Time cotton there.
Next up was Sonoma Yarn in Sonoma. This is a relatively small shop, located away from the main shopping area. The staff does include Frances Purl, the dog. I did not find any yarn to buy, but I did get some long straight Bryspun flexible size 3 needles, which are also known for their sharp points.
In Napa, I visited Yarns on First. This shop has a modern look with great lighting, and all the yarns are organized by color. The owner is friendly and the front of the shop has a table where friendly knitters were doing their thing. The wall shelves do go quite a ways up in height. I purchased some Berroco Lustra there.
My last yarn shop stop was at the ever-so-fun Imagiknit in San Francisco, where I purchased some Plymouth Fantasy Linen.