One easy branding opportunity that I don't see used enough is from from your coupon codes.
Some stores will use the generic ones: SAVE_10, SUMMER_SALE, 20_OFF
These are nice because they are clear, though any with a number will be pushed. Is SAVE_15, SAVE_20, or SAVE_25 valid for even better discounts?
Others will use random characters to make them look pseudo-unique or actually unique: nscxkabfzn, ikiivsqosg, or ac4e7888-df40-4382-821c-f4fc4c29bf6e. Those are required if you need something unique and can only be used one-time but they are actually a bit of a pain.
For a branding impact, use actual words that relate to or reinforce your brand. You can make them fun, serious, or poke at something. Say you sell houseplants:
FEED_ME_SEE_MORE, UNKILLABLE, EAT_THE_SUN, ONLY_PLANT_STAN_HAS_NOT_KILLED_YET play on cliches and puns.
All told, you probably only need 10-15 of these coupons per year. If you know the themes of your sales it can be very easy to brainstorm a few (those examples sound like good ones for a sale on plant food and hardy plants).
Use every chance you get to make your store stand out among the competition.
Eric Davis
See how the month a customer orders will change their behavior
Repeat Customer Insights will automatically group your customers into cohorts based on when they first purchased. This will let you see how the date customers bought would impact their behavior.