Here is an idea that came up in a brain-storming session we had when we were discussing caching survival items and burying them in the ground. I thought it might be interesting to see the pros/cons kicked around on the ETS forum.

The Idea:
Casting survival items and supplies into bricks of paraffin wax to keep items water proof, some items would have to be in separate containers in order to keep the wax from spoiling items.

The bricks could then be buried in the ground and supposedly still water proof.

There are pros and cons.