Marina Market has been one of my biggest surprises in my beer hunting experiences. They're located in Poulsbo, Washington and look more like a mini mart than anything else from the outside. You can find their exact location and hours on their website. As a bonus, they will ship beer from their site.
The husband and I found this place looking for some soda while up in Poulsbo. We both knew they had beer but had never really thought about what they had. Turns out it's an amazing selection and their prices are pretty reasonable. You will find everything from local beers to things you'd never expect to stumble upon. I definitely suggest popping in if you're visiting breweries up in Poulsbo, or going to any of the cool events up there like Viking Fest!