DIY - Homemade Gabion wall ie rocks encased in wire baskets and used as a retaining wall - creates a dramatic feature in a garden. No directions on link. Nice someone figured out how to landscape with river rock. I swear they grow!
Trenching - composting by digging a trench roughly 3 feet deep and filling it with compostable scraps, covering them with alternate layers of soil. Once completed, leave them for months to break down and then plant your vegetables directly into the bed.
GRASS PATH edged with stones along border. Love the winding grass pathway. Love Grass Paths thin and wide, long and short, brief or endless. Soft meandering path by which to enjoy the garden. I am obsessed with Grass Paths.