Just make sure you have some gold and silver on hand. The dollar is going to be devalued. I don't use or trust banks at all and I deal only in silver and gold, real money.
The use of credit cards is costing everyone who uses them and even those who do not use them. The cost of the credit cards is spread to everyone by the merchants to cover the costs.
The Bible says gold and silver is the money and that I believe. The founding fathers also made it law to have only silver and gold as money. It also says that honest weights and measures are a must. And the charging of interest is forbidden. (usury). Taking a tree and putting ink on it saying it makes it money is a ponzi scheme of the first magnitude.
I would also recommend getting several months of food for each member of your family. Non perishable items like dried beans, rice, dried beef and don't forget the water.
The four G's is the best advice I can give. GOD, gold, guns and grub.