I have a friend who owns a horse stable. She was talking to me the other day about how important it is to have a solar powered horse trough heater, especially with the way the winters are here in Michigan.
One of my good friends owns a turfgrass company. I ask him questions all the time about how to keep my lawn looking good. Recently I had some issues with crabgrass and he told me to check out crabgrasskiller.org - you should too!