My mom loves this tip [insert sarcasm], which we read in a magazine years ago:
Buy holiday M&Ms, discounted, and sort colors red, green and white. Save red and white for Valentine’s Day and green and white for St. Patrick’s Day.
It makes complete sense since Target had their holiday M&Ms marked 50% off today or $1.39/bag (YMMV), but she would say, the people who can keep their candy that long do not live in our house!