here and here), which was convenient in that I did not need to use dedicated panniers or ropes. The whole set-up literally took 5 minutes, and then I was off: first gingerly, then at a moderate pace. The postoffice is fairly close to my house, so I cannot boast a grueling ride over hills or along dangerous highways. But for what it's worth, it was raining, and the roads in my neightbourhood are riddled with potholes the size of ditches.
On the other hand, I do like the independence such hauling capacity offers, as well as the smooth handling of this particular bike despite the load. Richard Masoner of cyclelicio.us sent me a link to this picture of himself riding an Urbana with an enormous plastic tub bolted to the rear rack, in which he carried 80lb worth of camping gear. Okay, I like it. If this bike were mine, I can see turning it into a dedicated "cargo chariot," with a colour-matched tub permanently attached to the rack. Postoffice run? Toss the packages in the tub. Need to buy furniture or building supplies? Tub! This could seriously eliminate our need for using a car for local errands, without the need for an unwieldy longtail or Bakfiets.
So, how about this question: Assuming that (1) one does not plan to transport children, and (2) the rear rack is rated for the weight, what, if anything, is wrong with attaching a Bakfiets-sized container to the rear rack of a hardy transport bike and turning it into a "cargo chariot"? I am not talking milk crate, but a truly enormous tub, as shown here. It seems to me that such a system could really work for a person who cannot deal with (or afford) a longtail or full-on cargobike. It could work for me, for sure.