If you haven't developed an environmental conscience yet, you probably won't appreciate this post.
As for me, I am very intrigued with the potential of humanure composting. Basically that means that human feces will be composted and returned to nature as humus. As with other types of organic materials, you can do anaerobic composting, aerobic composting and vermicomposting (or combinations).
First of all, determine what makes sense to you: harnessing the nutrients in human feces or leaving your droppings in clean drinking water when the earth only has about 1% of drinkable water (or so I've read)? Before you answer this in your head, also consider that sewage water is oftentimes flushed out untreated in our oceans!
Let's go back to humanure composting. Does it have to be a stinky business? Not really. In most examples I've read on the Internet, you just need to cover the poo with sawdust, soil or even coffee grounds. You collect that in a bucket. Afterwards, the approach may differ.
Some people just leave the compiled humanure in a large sack and leave it be for about a year or two. As that process will be devoid of air, that's called anaerobic decomposition. After that period, the material will be usable as fertilizer already (no smell). You won't even recognize the material.
Most others use aerobic composting which means the material goes through a thermophilic process. The contents are aerated (but it shouldn't smell if covered with sawdust, leaves and other high carbon materials). This encourages the thermophilic microorganisms to process the materials. The compost pile will also heat up and kill the pathogens. Supposedly, with regular turning and watering, the compost will be ready in a couple of months.
Apparently, you can group microorganisms into those that thrive without air and those that need air. Without air, the decomposition process will be smelly (that's why the bag or sack is sealed) and slow. With air, it should be faster and less nasally offensive but requires a more active hand (turning the compost).
Then there's also vermicomposting, which I have gleefully been doing (regular food composting). But worms don't just have to eat fruits and veggies. They can also eat human feces. One upside is that vermicomposting is generally faster and more space efficient than aerobic composting.
So, wanna try vermicomposting your toilet deposit today?
Remember the hydrangea plants that we bought in Tagaytay about two years ago? Well they're a lot bigger now. Just look at the leaves on the first one. It's bigger than my hand I think! And look at the other one. It's blooming. However, two years ago I bought it with bluish flowers. Now it's blooming pink. When I read up on this months ago, the color of the blooms is determined by the PH of the soil. Well this means my soil is relatively acidic. I've got to add more eggshells for the next bloom (once a year). And do you know what sort of fertilizers I give these plants? Well it so happens the pots are really big and they're situated right beside my front door. So, whenever I sweep, I put the contents there (hair, dead skin, dust, dead insects). Not bad huh? My dirty mulch has really been feeding the soil. They're all biodegradable anyway. 
