Business ideas for AIESECers

I found out a very nice business idea, especially suitable for AIESEC people.
It is not anything new, in fact I believe a lot of people are practicing it (maybe without knowing) :)
It is house swapping.
I go to your house while you stay in mine.
No one pays rents and everyone feels (or at least is supposed to feel) "at home".
Why is it so good for AIESECers:)
Well, we can utilise our network and with our understanding of cultural sensitivity - we can make it easier and more pleasant for people willing to swap their homes:)
What do you think?
Anyone enthusiastic?
You can read The Times article on the topic, below are some websites of companies working in the field.