I have a sturdy plastic container that mints originally came in. It's nowhere near full, even after 3-4 years. When it does eventually fill up, I'll probably tape it securely so that it can't pop open, and throw it in with the regular trash. The only person who manually handles our trash is DH, who puts it all in a trash can and rolls it down to the road. The can is specially shaped so that a big mechanical arm on the trash truck reaches out, picks it up, dumps the trash into the truck, then sits the empty can back down in our yard. (Pretty cool to watch, actually!

) The truck hauls it straight to the landfill. They have heavy equipment to deal with the trash, so it's very unlikely that anybody but DH ever physically touches it.
I love the parmesan cheese container idea!