Here is a site that reviews the wonder washer.

http://camping.about.com/od/campinggearreviews/gr/wonderwash.htm





Here is another way to wash clothes.

http://www.breathingwasher.com/index.htm

But a very inexpensive clothes washer can be had for $2.00. A bathroom plunger in a bucket like the item above will work great. I have used this many times on long camping trips.