Eliminate your lawn. Stop slaving over a hot lawn mower every weekend, gas/oil-emissions.
Plant a zero-scape yard or plants native to your area/ground-covers.
Heat resistant plants won't need as much water either.
114-
Collect rainwater (probably already mentioned) but use that rainwater to water the ground-covers or native plants
once you've gotten rid of the grass.
115- Spring cleaning?
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