I just need to figure out what to do with the red canisters. Seems so wasteful to just throw them away.
I toss them in with the recycling. I'm not sure that's proper disposal, though.
round here, I collect them and bring them to the transfer station where they collect batteries, motor oil, fluorescent bulbs, etc. its only 2mi from my house and i wait until i have a box of stuff to take. YMMV.