For bulk produce, I've had luck with the farm stands along Highway 2. At most of them, you can buy whole boxes of fruit, rather than a small bag.

If you're out near Leavenworth, it's worth stopping at Prey's Fruit Barn, just before you get to Cashmere. Nearer to home but also on Highway 2, near Goldbar is another big fruit stand, the name of which I can't remember, on the south side of the highway -- they have boxes of most of their produce that you can buy.

In Carnation, call Remlinger farms, though in my experience they are a little more expensive. They do U-Pick, too, which is fun.

If you're out near Bothell, the Yakima Fruit Market on Bothell Way is legendary -- they always have AWESOME produce, and it's mostly all grown in the Yakima valley.

As for what to can, pickles are definitely great, and are great to go with drinks and appetizers. I'm also a huge fan of basic plum or apple butter, where it's basically just sugar, fruit, and some vanilla seeds. Fruit butters are great because they're usually a little more tart than jam, and go great on toast OR with a ham or pork roast. When I was a kid, plum butter was the standard accompaniment for pork chops.

Pickled beans and carrots are perfect with bloody marys. A LITTLE bit of Cardimom in the spices is nice in the carrots just one pod, too much and they taste funny.

The other day I made a fridge pickle with pepperoncini because they looked good at the farmer's market. I also have several jars of garlic pickled with various herbs, one always open in the fridge, that come in handy thrown into stews and whatnot. Plain old cucumber pickles (non-fermented) are a must on my sandwiches and even good in grilled cheese. I still haven't done much fruit canning, and pickling stuff is easy because it involves so much acid and no pectin.

If blackberries are still in season, you should totally do those, or make some nice blackberry jam! Delicious! And, if you can find them--marionberries! Yum!

You must really enjoy it! Good job!