Water wisely. The best time to douse the lawn and plants is in the evening, when they'll absorb the most moisture. (Get the kids outside and hose them down, too, and maybe you can skip the bath tonight!)
Choose the right plants. Steer clear of annuals (like marigolds), which you'll have to replant each year. Instead, go for perennials (like daylilies).
Outsmart weeds. To keep them from sprouting through your walkway, pour white vinegar in the cracks (it's a natural weed killer). In garden areas, cover plants with mulch to keep weeds from sprouting.