This is a Good Idea

One of my favorite bike magazines is Cycling Plus from Great Britain. I don't buy it every month because it's $9.99 an issue here in the U.S. so I usually just read through it at my LBS (local book store). I bought the March issue mainly for the touring bike and pannier reviews. There is an interesting article in this issue about British supermarket chain Waitrose loaning bike trailers for three day periods to people wanting to use their bikes to get to the store and transport their groceries back home. It's an interesting idea. You can read more about it here and here. 

The Bike-Hod trailers, attach to your seatpost and are supposed to be well suited for use with folding bikes.