I'll list some of my favorite green cleaning tools and hope you'll contribute what you've discovered works without exposing our families, pets and home to potentially hazardous chemicals.
Baking Soda- mixed with water into a paste and used as a cleaner for counters, sinks and bath tubs. I also use it when washing dog and horse laundry. Nothing else can get the smell out.
Distilled White Vinegar- Mixed 1:1 with warm water for cleaning mirrors or windows. Also as a stain remover on floors.
Lemons- juice desolves soap scum and hard water deposits. Throw a peel down the disposal to get rid of odor
Rubbing Alcohol- the single most effective streak free glass and mirror cleaner I've ever used. Also perfect for stainless steel and picks ink up out carpet. (thanks pups!)