New beginnings encourage people to pursue their goals. This can be a new week, month, year, national holidays, anniversaries, and birthdays. “New year, new you!” say various slogans. You can take advantage of this effect to persuade your customers to buy more.
Whether it's a cliché or not, people want to change at the beginning of every year. This is the best time for gyms, gym supplements, activity clubs, etc. The same applies to moving to a new place, expecting a baby, getting married, and many other life situations.
Allstate’s content marketing strategy is a great example of this. They have a whole section of blog posts and resources related to life’s big milestones.