Well, I did it. I got over my fear of not being strong enough to pull a trailer full of groceries.
This last summer, a month or so before I even found you MMM folk, I decided to try to convert an old kiddie trailer I got off CL into a cargo trailer for groceries and such. I got busy with buying a house, and then I had this lingering fear that while riding back, my legs would go on strike and I wouldn't make it home, I would spill all the groceries, and the world was gonna end. Blah-blah-blah. So I never converted it because I didn't want to put all the work into it and then not be able to use it.
Today I decided to just use it as is, with a really ugly old canvas cover, the top missing and all, just to see if I could pull it. And it was easy. The way home is even mostly downhill!
I will now try to rescue the good lookin' frame and make this thing into a nice cargo trailer (ideas welcome, but I did already find quite a few on instructable's and other forum).
I now know for sure my bike can be a mean, green, haulin' machine!
PS: Since the top is missing, I did have to watch for the toilet paper package not to jump out the back. Have toilet paper=Will bike again. :)