Before we moved in the previous owners tore down the patio cover out back. It was unsafe and needed to go but since then our patio gets a lot of sun. In San Diego the sun can be particularly brutal especially in the afternoon. When I saw these sun shades at Costco I thought they might be a good solution to our problem.
I have arranged them in several different arrangements and the patio still gets a lot of sun. Eventually we might want to get a custom shade, but for the mean time I think that this is a good and very cost effective solution.