You can go far with a humble paperclip.
I'm not sure if this is real or not, but MR seems to think so:
My name is Kyle MacDonald and I am trying to trade one red paperclip for a house. I started with one red paperclip on July 12th, 2005 and I am making a series of trades for bigger or better things. My current item up for trade is one year in Phoenix. Do you want one year of FREE rent in Phoenix? Pop your offer over to me at (firstname.lastname@example.org)... You can see the current offers here. I live in Montreal Canada but will go anywhere in the world for the right offer.