For retailers and consumer goods companies, the calendar is not measured in months but in peak seasons. Rather than the Earth’s movement or the Lunar calendar, events and traditions (mainly with religious roots) determine the peak seasons. Christmas, Diwali, Easter, Eid, Hanukkah, Halloween, Father’s Day, Mother’s Day, and Valentine’s Day. Some are linked to the social and work calendar: Back-to-School, Summer holidays; yet others are political like Guy Fawkes Day, national independence anniversaries, and more. And others are artificially created to stimulate sales between: Black Friday, Amazon Prime Day, and Cyber Monday. Whatever the nature of it, being ready for the rush is a success and survival matter for retailers and consumer goods companies.