You care about your exact bills? You actually take the time to look at the serial numbers of all the bills you use in a given day/week/month/year? For what purp

You care about your exact bills? You actually take the time to look at the serial numbers of all the bills you use in a given day/week/month/year? For what purpose? I check for cool serial numbers fairly frequently but I couldn’t say I care about the exact bills. A five’s a five. That’s why currency is great.