Grass clippings and fallen leaves are convenient materials to use as mulch or use in the creation of your own compost pile.
(Grass clippings and fallen leaves; are; convenient materials to use as mulch or use in the creation of your own compost pile) (convenient materials; to use; as mulch or use in the creation of your own compost pile)
Grass clippings and fallen leaves convenient materials
are to use
convenient materials to use as mulch or use in the creation of your own compost pile
as mulch or use in the creation of your own compost pile