One more thing...

[damerell]

Did I mention cargo trailers? I have a Carry Freedom Y-Frame Large (rated to 90kg) and a Y-Frame Small (rated to 45kg and "better if you like going through doors") and the frob to connect one to the other.

http://p.twimg.com/AXNp7imCMAEqNxS.jpg shows me leaving the local Milton Brewery with three full 72-pint (British pints, so just over 40 litres) firkins of beer.