Start small. Pick up a 55-gallon barrel from a garden center or online, set it on a sturdy stand (bricks work), and attach it to your downspout with a diverter kit. The whole process takes about an hour.
Then wait for the next rain. When you see that barrel fill up, you’ll feel like a genius. And when you use that free water to revive your wilting lettuce? Pure satisfaction.
So, go ahead. Let the sky do the work. Your garden will thank you, and your water bill will pretty much become a background character in your life.