My mom used say this to us all the time when we were little. She would tuck us into bed and we would say, "Mom, I love you to the moon" and she would respond "Well, I love you to the moon and back!" I've been really missing her lately.
'Sometimes when I need a miracle I look into my daughter's eyes and realize I already have one' subway style hand painted wood sign, typography wall art Love! Would have mine say children's eyes though.