Too bad there's no one trustworthy to break down the drop between those once again able to leave the labor force and those who simply can't find a job. Surely some of those are existing or new retirees comfortable enough with the stock market to give up that full time job.
I think most of that may be gas prices. According to your first link, gas prices counted for around 10% of retail sales last year, so a 10% decrease in gas prices would be a 1% decrease in retail sales. I suspect another big factor may be merchants hedging the Christmas season bets by offering great sales (including "lowest price of the season" sales) in November, which probably tempted a lot of people to buy some of Christmas in November.
I did my part, spent around four grand on Christmas. The rest of you slackers need to get out there and pull your weight!
Conservatives believe wealth is earned, not distributed.