Rubber mulch?

It looks like tire copmanies can be hotbeds of innovation. Rubber companies are recycling their old tires into mulch. The stuff comes in different colors, doesn't get packed down or wash away, saves trees, and is easier on knees. It's selling like crazy, at a price roughly 8 times that of regular mulch.

If tire companies can come up with new ways to make money and delight consumers, we certainly have no excuse.