Here's the deal, you stick these magnets in your washer and use no soap, which elimiates the rinse cycle also. How? Well, it makes sense.
I remember from my chemistry class that soap does not clean, it's the water. Soap just makes, well, it just kind of makes water wetter, which then enables it to get to the dirt better. Soap doesn't clean, water does. So, if these magnets can chemically do to water what soap does, then there is NO reason it wouldn't work.

The website is very straight-foward with a video that shows how it works. There is also a 90-day money-back guarantee, which I would assume people wouldn't even need. This would cut our cost of detergent and water, while eliminating un-necessary packaging, natural resouces in the production, and chemicals in our water. (via Treehuggr)