I will pick up any and all spare change including pennies I see laying around on the floor of stores - a surprising number of people will leave change in the coin return at the registers. I put them in a jar, and every few weeks put them back in the registers when I go grocery shopping lol.
You’ve heard of pennies from heaven? I think about that since most of my family is gone, and laugh to myself when I find a nickel, dime or quarter (sometimes even an errant dollar bill!). My family was notoriously thrifty so I joke that mom/dad/my sister was feeling especially generous that day 