Short of taking your clothes down to the nearest stream and beating them on a rock, there are far more environmentally friendly, healthier and cheaper ways to get your clothes clean than using the highly advertised, chemical-laden, and expensive laundry detergent. The good news is you can buy environmentally friendly laundry soap just about anywhere. The even better news is that you can make it yourself and save a bunch of money in the process! You can control the ingredients, and can create your very own signature scent by using different soaps or adding essential oils. Any Google search on the Internet for homemade laundry soap will give you many recipes from which to choose. Here's a popular recipe that I have used as have several friends and family members.
Eco-Step: For added environmental and wallet friendliness, hang your freshly-washed clothes out to dry (or over bars, on hangers) instead of tossing them in the dryer.