Three weeks today

Three weeks today will be Christmas Eve. By this time of day all the shops will be closed and what we haven`t bought by then, we`ll have to go without! But with the amount everyone seems to buy I can`t see any of them going without. Every year people seem to buy more and more and more, it seems almost a phobia that one will not have enough, so everyone buys far too much “just incase”….
Wonder if there is a word for it?
Maybe it`s called Consumeitallitis !