We've been getting boxes of produce from Full Circle for over a year now, previously on Capitol Hill, and now down here in our new neighborhood of C City. It's a great service. You can swap out up to 5 items with an alternate selection (or double certain items) in each box, via a form on their website. They are also super responsive and helpful whenever I have emailed or telephoned (as in, oops I forgot to get my box, where is the 2nd chance location!).
Now that the Farmer's Market is closed for the season, Full Circle is a great way to get fresh organic produce. Note that they do source some of their produce from other farms, both in Washington state, and sometimes California or other places. So it's not entirely only local produce, although they do mark which items are grown on their farm, and in Washington state.
They also supply many of the local organic markets (Madison Market on Cap Hill, I believe also PCC).
http://www.fullcirclefarm.com
