Here's one of my ideas Andrew turned into a project that we are quite proud to have on display in the bathroom. This is our new and improved indoor compost potty made of 2x4's cut at unusual angles to make a circle. I don't know how he did it as it looks difficult to construct, but it's a work of art that I'm happy to look at every day. If you saw our previous potty, you will notice the difference from the square box to this beauty.
And inside is an industrial size black oil bucket, plentiful at the local transtor site(aka dump) for free. Right now Andrew has to lift the full bucket out so we are thinking of putting a hinge on the side to allow us to open the front half and slide buckets in and out without lifting.
The box behind the toilet is where the sawdust is held. We use the humanure method of composting and dump the buckets into bins of straw and compost them for a couple of years before pushing them over with the tractor and starting another one on top. Great way to save water and keep fit. Took me a few times to get used to washing buckets but it's nothing now. Once you get over the poo fear factor, it's an amazing way to return sawdust and human waste back to the land.
"The Humanure Handbook" by Joseph Jenkins is found online free at http://weblife.org/humanure/default.html. It's getting difficult to find for free online so I suggest downloading it soon for future reference, or just a fun read. He handles the poo fear factor with humour to make us more comfortable in dealing with it.
In any case it's good info to have as backup for power outages if you have a large family, or a long power outage.