You could take some of the weight off of yourself, and onto the dog. http://www.google.co.uk/products/catalog?q=dog+backpack&hl=en&client=firefox-a&hs=kpL&rls=org.mozilla:en-GB:official&prmd=imvns&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&biw=687&bih=627&um=1&ie=UTF-...

I'll take 'em. I live in Bristol too, so I could just swing over and pick them up if that's good for you?

From wikipedia; "Cycling is permitted along the canal towpath except for a 656 yards (600 m) section near Woolhampton. Some sections of the canal towpath have been improved and widened to make them more suitable for cyclists and disabled users."

I made my own, in the most ghetto method possible. I spent nothing on any materials except thread. I used a discarded tent, cut out the (ripstop) groundsheet and used that as the material. I had some long zips I cut off some scavenged luggage - they're not waterproof so I put large flaps over the to...

Got to be Nick's.

It's already been said, but those photos are damn good. That old slate (I guess?) barn looked sweet.

I'm seconding the jubilee/hose-clamp clips - you can get two from Wilko's for about 90p, and chuck a strip of inner tube underneath, as the man above suggested. I've carried a litre of water in generic bottle cages mounted like that, and it works fine.