My idea for point of sale phone number card, versus keying in phone number each time.

A few years ago, I thought there ought to be a universal card with a bar code for one's phone number to use at businesses that have club cards. It would be easier than sorting through a wallet full cards for each business.

Guess what. It seems like most businesses have dropped issuing cards and they have customers enter their phone numbers at the till anyway. They say "key in your phone number" which brings up your file on their data base.

How about a universal phone number card, like I had thought before? This, versus keying in one's phone number each time.

I also think maybe the bankcard takes care of this as I've noticed, when I use a bankcard, my phone and email comes up in the receipt anyway.

One can pay using their phone itself. I've never tried that in a brick and mortar business, but it's getting more common.

Problem with paying by phone is getting the phone and the store's till to handshake. A card would be easier. A card could work with cash purchases as well.

These days, a card doesn't even need a bar code. It can use an RFID chip.