 Save big on back-to-school with Staples Hot Deals. Right now, 24-pack Crayola crayons and comp books are only 50 cents each at Staples. How will you keep your yard healthy this summer? Follow these simple irrigation tips from the Water District. Change your irrigation clock to cycle and soak lawns no more than four times a week. Run drip systems low and slow to up to three times a week.