I agree with OP. Solve the big problems first. If at some point landscaping ranks as a top consumer of water, then solve it. Attention and effort is a resource

I agree with OP. Solve the big problems first. If at some point landscaping ranks as a top consumer of water, then solve it. Attention and effort is a resource -- spend it where it has the most impact. http://en.wikipedia.org/wiki/Amdahl%27s_law http://en.wikipedia.org/wiki/Amdahl%27s_law