Could rain save you money? What if bath water, shower water and dish water were valuable, too? Here's how to turn wasted water into something far better. With creative water-saving technologies, you can collect rain water from gutters and downspouts and store it in a large underground tank. A small pump then redistributes it, when needed, to irrigate trees, shrubs and the lawn around the house. Between April and September, a test home in Santa Fe, N.M., captured and recycled 10,000 gallons of rainwater from the region's seasonal average of 12 inches of rain. A second emerging water-saving technology cleans and stores a home's gray water -- meaning that from showers, baths, laundry and doing dishes. Once thoroughly filtered and treated, it is pumped to meet special irrigation needs. They say when it rains, it pours. Only now, it's raining money. Taking a shower has become valuable, too. And that's the On The House Tip for today.