I was reminded of this truth when I received an e-mail promotion from Outback Steakhouse on Sunday, February 17. Why was the e-mail sent on the 17th? Because Presidents' Day was the next day: Monday, February 18. Here is the text of what I received:

HERE'S WHAT'S GRILLIN' AT OUTBACK THE WEEK OF FEBRUARY 18, 2019

HONORING HEROES WITH 20% OFF

PROUD TO SERVE THOSE WHO SERVE

We are partnering with Operation Homefront to help make life a little easier for our military, veterans and families in their communities. We are honoring all HEROES February 18-21 with 20% off.* (with valid state or federal ID).

The * refers to the fine print at the bottom of the e-mail stating that the offer is valid from February 18-21, and is open to servicemen and women, police officers and firefighters, with corresponding state or federal service ID, plus Military Personnel and their immediate family members who have a proper form of identification.