If you have a small lot, I think your idea of a small tarp would be best. They can be folded and put away and as you say, you don't have to lift. And, they're cheap. Alternately, check the Lee Valley catalogue -- I think they have a cart that is low-slung especially for us seniors.

Hi Dotty,
The more I looked at carts online the more I came to the same conclusion about the tarp. I'm also able to make my own super heavy duty one because I had an upholstery biz at one time and still have the heavy machines. Maybe I can have a little garden tarp biz on the side if I come up with something
good? :) Thanks and Happy Spring