Who said "Gratitude's a habit, so practice it every day."?

This quote is attributed to Heckle and Jeckle.

Gratitude's a habit, so practice it every day. - Heckle and Jeckle

"Gratitude's a habit, so practice it every day."

Heckle and Jeckle Gratitude

"Why be serious when you can be hilarious?"

"Life's too short to not laugh at yourself."

"A good prank shared is a friendship earned."

"Sometimes the best wisdom comes wrapped in a joke."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"