clipped from: shine.yahoo.com   
1. Baking soda: Acts as a scrub to remove hard water stains; polishes metal; deodorizes pretty much anything it touches (try stashing some in the fridge).

2. Borax: Mixed with three parts water, it makes a paste for cleaning carpet stains; mixed with ¼ part lemon juice, it cleans stainless steel and porcelain

3. Lemon: Deodorizes and cuts grease on counter tops; rubbed on cutting boards, it bleaches stains and disinfects; combined with baking soda, it removes stains from plastic food storage containers

4. Salt:
Another natural scrubber—sprinkle it on cookware or oven surfaces, then rub; add citrus juice to turn it into an effective rust remover.

5. White vinegar: Deodorizes and disinfects; combine with water (and a little liquid soap—I know, it feels like cheating) to clean windows, mirrors, and floors; use at full strength in a spray bottle to fight mold and mildew.

6. Olive Oil: Mix two parts oil with one part lemon juice and use as a natural wood polish.