It may not have anything to do with growing veg but somehow couchsurfing feels like it belongs on this blog.
Basically you sign up to a social networking site of people who are happy for you to come and kip on their couch. Nice, huh? Have a peek here – http://www.couchsurfing.com/
I have had one person to stay so far and all went swimmingly. My first couchsurf will be in Glasgow in two weeks time.