Anne: I use rubbing alcohol to clean my bathroom floor.
Fiona: Bon Ami. It's not chemically based and is more gentle than Ajax or other cleaners.
Anne: try Kaboom bathroom cleaner. It comes in a purple spray bottle and has worked wonders on both old (dull) porcelain tubs and a fiberglass shower enclosure. (Editor's note: Kaboom is based on a proprietary organic acid salt that does not emit toxic fumes and is ammonia and phosphoric acid free.)
JR Rice: Murphy's Wood Oil Soap. Nuff Said!
Meva: Seventh Generation products are a great non-toxic alternative for anyone who is environmentally conscientious
Hillary: I only use one product and it cleans everything -- Dr. Bronner's SAL SUDS. Great product, great guy. ALL ONE!
Doug (the NYC one): I'm not as good as I'd like to be about buyinng green products, but arthome Ecological Heavy Duty Countertop Cleaner and arthome glass cleaner work wonders.
Ali: i use vinegar for most things (esp glass and kitchen floors), but i also use a spray bottle with one part tea tree oil and four parts water.
Tabby: For cleaning walls before painting them, try MEX.
(Re-edited from 2005-05-12 - MGR)
(Re-edited from 2006-05-16 - MGR)
(Re-Edited from 2007-03-09 - MGR)