I don't care if I save $0.35 per grocery trip or $35. I really don't. And I'm definitely not wealthy! But when it comes to all those valuable pieces of paper, I've decided I'm not making the cashier scan and verify them one-by-one, the people behind me in line wait the extra time, the bookkeeper add them up and send them in, and then whatever clearing house wage-slave collect and destroy them.
I realize that sounds judgemental, but that's just my threshold. I genuinely feel everyone needs to decide how they want to live their life...