'Tis the season to be spending! Did you know that PayPal's busiest day of the year last year for online mobile transactions was today, December 12th! But the time when Americans indulge in retail therapy most throughout the year? Mondays between noon and 1pm. That's one expensive lunch hour! PayPal processes over $10,000 a minute in mobile payments, so we want to know: What percentage of your holiday shopping do you do online? Tell us in the comments!