I'm planning on getting a big load of topsoil to "dome" it, but I
really need to do something about the clay. They say the best thing
to do with clay soil is to work "organic material" into the clay. The
most readily available organic material ( that I don't produce myself!
) is mulch, basically wood chips. I would much rather go with some
kind of compost. Where does one go to find a truck load of compost?

In our area, at the landfill. They receive "green waste" seperately,
chip/shred it, compost it, and sell it for something like $15 per truck
load.

steve