When "it" happens I think it's most likely going to start in phases. First, there will be a shut-down in our electrical/internet infrastructure making credit cards of no use; the new currency will be "cash only". As the economies collapse, monies will be of lesser and lesser value making other things like gold and silver the new currency. When people find that they can't eat or drink gold or silver, food stuffs and water will be the new currency. We all had better be hunkered-down by this point, but there still may be a need to barter with people for some things. What are some ideas for other "currency items" that a person might want to have on hand when we get to this point?