I was rummaging through the pantry last night and was struck by the variety of beans and grains that we have in plastic bags with those little twist tags that you write a number on when buying in the bulk section of the supermarket. It looks like I have oats, millet(?), rye(?), black eye peas, green peas, lima beans(?), and garbonzo beans. Anyway, I was thinking that these would make great cover crop. Any thoughts? I usually buy a bag of "Soil Builder" from the local garden center at a ridiculously inflated price.