If you are interested in some marketing idea for today, what about trying to market coffee today as today is the International Coffee Day? It should be good for a few sales.
Such things are easy to set up in your receipts in your POS system. If you have a VIP club it is easy to send email newsletters out.
International Coffee Day 2018, celebrates the most popular drink in the world. According to recent research, it is good for you too.
An example of how these marketing days are good for business.