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, to
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

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, to
Farlex Partner Idioms Dictionary © Farlex 2017
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