"Have a good day" is often expressed as one departs.

Here's How to Have a Better Day

Sometimes it is the things that we don't do

that make a better day:

not procrastinating

not becoming impatient

not being possessive

not being anxious to impress others

not cherishing an inflated opinion of yourself

not taking advantage of others

not keeping a record of hurts done to you

not worrying about tomorrow.

Love is patient, love is kind, and is not jealous; love does not brag and is not arrogant, does not act unbecomingly; it does not seek its own, is not provoked, does not take into account a wrong suffered, does not rejoice in unrighteousness, but rejoices with the truth; bears

all things, believes all things, hopes all things,

endures all things.

1 Corinthians 13:4-7 NASB

By avoiding these things, you will have a better day!