Here are three photos of the finished flagstone patio. Dwarf mondo grass has been planted between the stones, and there is a path (second picture) leading from the little patio that came with the house, across the lawn, through the trees, and out to the big patio.
The last major project in the back yard will be a fairly low ground cover (asian jasmine) across the back of the yard along the fence, under and around the crape myrtle trees there.
In the third picture, the extra flagstones (small and/or broken) are piled in the mulch. They'll either be used decoratively somewhere, or they'll be tossed out. I'm not sure yet.
It's taking shape, better and better each week!