that's not saying much(that's not saying much, idiom, used to indicate that a fact, achievement, etc., is not unusual or impressive: He is a better golfer than me, but that's not saying much (because I'm not a good golfer). merriam-webster.comsea holly)
tip of the hat(A gesture of acknowledgement; often, an expression of gratitude; originally by doffing one's hat.: So when the law gets enforced properly—and the workplace is made safer and more equal for everyone—it is worth a tip of the hat.jimka)