Ever since I bought my 4wd I have been trying to come up with a good way to handle the trash I find on the trails and the Wag Bags that me & my PETT (porta-potty) create. I think I am on to something interesting and with my upcoming 5000 mile 22 day adventure from Canada to Mexico there ought to be plenty of time to test things out.
The basic idea is just a big metal ammo type military can with a nice clamp on weather proof and more importantly odor & ant proof lid. Then I took 3 u-bolts a drill and a couple of rachet straps to make it all strong & secure.
The nice thing about this size can is that off the vehicle it is a great size for a camp trashcan also.