We are not cooking here, we are doing laundry.
Charcoal is probably the ultimate green alternative to the detergent.
1) Get charcoal. (~3"x2"~)
2) Wash the surface of charcoal. (you don't have to use soap; just scrub the surface off)
3) Put the charcoal in a bag (such as an old sock) along with something that makes the bag afloat in the washing machine (foams would work). Close it with rubber band.
4) Put in the washing machine.
Easy as 1-2-3.
Salt (1-2 tbs) works as bleach, deodorant.
Vinegar (wood vinegar, not balsamic vinegar please) works as softner/finisher (use when rinsing).
photo by hosiubo