I've been sick all week, and I won't outrule that the lousy shit on daytime tv has made it worse, but suddenly there was an interesting program! About cleaning! Who would have guessed... Anyway, the show was How clean is your house and it was exactly like any of these shows where you visit some people and gaze at the filth/bad economy/over-weight or whatever it is. But the nice thing is they had all kinds of tricks for environmental, efficient, healthy and cheap detergents!
This is a good introduction and this page has loads of more specific tricks & tips.
Like the classic soda/vinegar combo for cleaning the bathroom! Works wonderfully. A bit of toothpaste does wonders for the taps!