Leaf mold and it's benefits
Leaves are a great by product and one I am regularly given. I've been digging out some well rotted leaf mold that has been here about two years. If I'd left it another year it would look almost like peat. I have about six barrows full here and I'm using it to line my trenches in the veg patch. It'll really help with this heavy clay soil. Organic material is the best thing to use to help with breaking down the soil as the organisms breaking it down improve the structure. Sandy soil is also helped by this organic material as it gives it the ability to hold on to the moisture and nutrients. If you get offered leaves, rot them down (they need fungal activity rather than bacterial activity, like in a compost bin) You can add a few grass clipping, put them in some bin liners and picture the bag a few times. Pop the bag somewhere out of site for a couple of years and Bob's your uncle!