Simple Toilets

While hiking the Appalachian Trail I used a garden trowel a few hundred times, no leaves though - just real tp!

Normally, though, for the past ten years we have used a sawdust composting toilet that it quite simple. The bucket, a box with a seat and lid, some sawdust, keep it covered and rotting sawdust works best. Compost in a simple bin layering it with straw or grass clippings. For more info see The Humanure Handbook

It's the Sh** shovel!

Here's another simple toilet: http://gizmodo.com/5018566/pop-a-squat-anywhere-anytime-with-environmentally+friendly-shit-box

My dad invented this when we used to camp as children.

I would think that the shovel handle should be shorter to make it easier to use. Also, in some areas (for example, where we live) the soil is so hard that you would need a rounded blade.