[mweels]

I think a trailer exchange could help reduce travel costs.

Person A has a air stream and a number of local campgrounds. They list this information on a trailer exchange. Person B reserves Person A's trailer and campsight. Person A drives their trailer locally and greets Person B (who came on train) and they camp for a period of time. Person A gets a number of points for this. Person A goes and uses his points with other people.

Could be interesting and efficent if used with trains.