A really boring subject but.

What is everyone's favourite/most effective natural(ish) laundry detergent for nappies or clothes? And any tips for keeping your whites white?

I'm trying to find that elusive dream detergent (currently using bio-d) that actually gets rid of stains. Any tips gratefully received

I love soda crystals. They usually shift most things. I am a bit wierd about my white sheets and every washes or so give them a bleach prewash, not very eco though.
We use method liquid, really concentrated and smells nice too!