Except now as the mother of teenaged boys, many little boy noises have been replaced with video game noises and loud music and text tones. Also my wallet is always lacking cash since my oldest son,(17) is driving. They grow up too darn fast.
Cool the kids off with a homemade sprinkler. Take a 2 liter soda bottle, poke holes in it. Attach to a garden hose via a male to male adapter that cost less than 5 dollars at Lowes. Toss over a tree branch and let hang. You can adjust how the water sprinkles by adjusting the water flow. When the bottle dies just switch it out with another bottle -- no additional cost!