Kids produce piles upon piles of laundry. While carting the clothes to the washer is one chore, lugging the weighty jugs of detergent is another. An earth-friendly option I found is ECOS Free & Clear concentrated liquid detergent that is 100 percent non pollutant, biodegradable, nontoxic and natural.
Two ounces of the fluid cleans an entire load of my children's soiled clothes as well as any mainstream brand and because it has a neutral PH, I don't have to worry about it irritating their sensitive skin. Sold in a recyclable container, 50 ounces is $8. Best of all, your children will have clean clothes and you won't have any more arm aches.