All free and clear?
You could also try making your own with grated fel naptha soap, washing soda and borax. Here's the recipe:
1 bar Octagon soap (found in the laundry aisle), grated.
3/4 cup washing soda (Arm & Hammer is the most common brand)
3/4 cup borax (20 Mule Team is the most common brand)
1 medicine dropper of tea tree oil
Put the grated soap in a saucepan with 6 cups water and heat on medium-low, stirring occassionally, until it is melted. Add the soda and borax and stir until dissolved. Add the tea tree oil.
Pour 1 quart of hot water into a bucket. Add the dissolved soap and stir. Add 1.5 gallons of water and stir again. It can be used immediately, but it will gel up after about 24 hours.
Use 1/2 cup per load.
Most delis (grocery stores, Costco, etc.) get salads and stuff in small white buckets that are just right for this recipe. If you ask nicely, they'll probably give you one.