Turn a military surplus fuel or water can into a hinged-lid trash can
Step 1: Decaptiate Jerry Can
Warning: This step involves cutting into an old gas can. Even if the can is bone dry, residual vapors could ignite (especially if power tools are used.) Vent the can completely, work in a well ventilated area, use eye protection, etc.
(Obligatory disclaimer: Not responsible for injuries, damage to property, angry neighbors, etc.)
Cut the top section from the can, just below the flange where the top of the can meets the body of the can. I used an angle grinder, but a hacksaw or rotary tool would work just as well.