I think you're finally a grown-up when you stop picking up pennies off the ground. Leave them for the little ones to discover.
Dollar bill, however, will not be passed up.
I'm a Grown-Up Girlie: I'm out of college, have a career, house, husband, and three sons (including a set of twins!!). I'm full-grown but still wondering... what's next? These are my adventures in Adulthood.