make it a rule to do something

make it a rule to (do something)

To insist on doing something that one considers proper, beneficial, or appropriate. I make it a rule to treat my staff to a big night out three times a year to keep them happy. You should make it a rule to back up your computer once a month at the very least!
See also: make, rule
Farlex Dictionary of Idioms.

make it a ˈrule to do something

always do something because you think it is a good idea or the right thing to do: I make it a rule to invite all my students to a party at my house once a year.
See also: make, rule, something
Farlex Partner Idioms Dictionary
See also:
  • be licking (one's) lips
  • be licking your lips
  • big year
  • be more trouble than it's worth
  • be a double-edged weapon
  • redeeming feature
  • a redeeming feature
  • be a double-edged sword
  • be a double-edged sword/weapon
  • a silver lining