Plastic Bottle Mini Green House - Use Soda Bottles. Cut the bottoms off, then cover seedlings (like cloches). They protect seedlings from pests, frost, wind, and strong rain.
Black raised garden beds Modern potager - Finalist in Best Edible Garden Category of the 2014 Considered Design Awards, Gardenista
A way to grow vines up the side of the house without having them root on your siding or ruin the mortar of bricking.