You might consider using a "camping soap" that can be used for many uses. I used this stuff while doing some self-supported backpacking and it works well and is super versatile. By using this stuff you will need fewer little bottles/containers. Just a thought.

We used it as; dish soap, body soap, shampoo, brushing teeth..... I'm sure you could use it to clean your clothes too.

http://www.rei.com/product/407232