Okay, so what exactly is the best tool for these dang blister packs?

Any better suggestions other than using a sharp pocket knife, remembering to slice
away from you, and making darn sure there is nothing that you do not want destroyed anything around you in case the knife slips? (And additionally trying not to destroy the item
inside the blister pack!)
Chainsaws? Tin snips? Any ideas?
I think I heard/read somewhere that more injuries are caused on Christmas day by people opening blister packs than anything else.