Any of you campers out there probably know, those disposable propane canisters cost about $4 these days. And it always rubs me the wrong way to chuck them when they're empty.
But no more! With this $20 gadget, you can re-fill them from your bulk propane tank:
"The MacCoupler makes a welcome addition to any camping gear, RV enthusiast, outdoorsmen, or home owner that needs to use a 1 lb. propane tank but doesn't want to spend all that money replacing them. Now you can safely, easily refill those tanks with the MacCoupler. Simply attach the MacCoupler to your 20 lb. tank, then attach the 1 lb. tank you want to refill and in less than a minute your tank is filled and ready for use."
http://www.maccoupler.com/catalogs.htmPS: I just got mine in the mail, but I haven't actually used it yet. (But aside from incinerating myself, what could go wrong?)