My mom always went shopping right after the Christmas holidays and picked up leftover, discounted items like wrapping paper, etc. She also picked up a few bigger ticket items that were cheap and hid them away until next Christmas. Mom died nearly three decades ago, so people have been doing that “Blue Days After” shopping for a long time, at least 4 or 5 decades that I can remember. Nothing new here. The generation that grew up during the Great Depression invented that long before we were even around!