Originally Posted by PBzeer
At the risk of straying into total grossness (is that a word?), since I carry water in gallon jugs for cooking and making tea, I save the empties and when under way and can not go over the side, I use the jugs. That way my aim is true, and no need to flush the head (thereby filling it up even faster). When I reach somewhere I can empty my trash, I simply toss out the jug/s. No fuss, no muss. Not the most appealing method perhaps, but it works well when you're by yourself and don't want to be inside too long.
From what I understand that is the prefered method for PI's everwhere.