Once the rack was installed, I used bungee cords to attach a "milk-crate style" basket. But I wasn't happy with the bungee setup, so I rode into Archer and grabbed some zip ties, and then rode back -- about 11 miles, all told, and all of it on reasonably hard-pan bike trail that's not quite finished but is very, very nice.
So now it is not just a leisure and exercise machine. I can go grocery shopping, etc. As some point I'll probably add pannier bags for longer trips. And of course a custom-printed plate: NRTNXIII or something along those lines.