I've tried all sorts of things to carry a bit stuff on the back. Boxes, panniers, rucksacks.
Finally, I've settled for a Hien Gericke dry bag, It'll hold as much or as littel as you want to put in it, strap it down onto the rear rack and away you go...
�25 for the bag.
but you need a rack!!
PS - I've just noticed that my fongers ahve stoppeds awoerking propper,tdsan
Oh ******!