I hear ya Falcon,
Sometimes I miss that jungle environment. You really could find anything you need there easily. Food and water was no problem, shelter was easy because there was bamboo everywhere and it's easy to work with. Makes great cooking vessels too eh?

When my Bolos get really dull I will reshape the edge with a medium file then a coarse diamond hone, then a fine diamond hone. Remember though, this is a working/chopping edge and it shouldn't be razor sharp or have too fine an edge. If the edge is too thin it will chip easily. It should be chisel sharp and convex like an axe edge. That way it won't get damaged easily and it will retain it's working edge longer. When your Bolo get's stained and rust spots appear, scrub it down with hot soapy water and a Scotchbrite pad. After scrubbing rinse in HOT water and dry thoroughly then let it sit overnight to completely dry. Apply a thin coat of 3 in 1 oil to the blade and the horn handle and you're good to go.
Kix