While your experience surely will always be true to you I know times it has been useful. For instance, at my job there is an app with the lunch menu, and the ur

While your experience surely will always be true to you I know times it has been useful. For instance, at my job there is an app with the lunch menu, and the url to it is on a barcode on the door to the lunch room. To have contact information on a qr on the back of a business card is a good idea, and I've seen local businesses with their website on barcodes outside their offices/stores. Not something you use daily, but still a good way to tranfer information from the analogue world to the digital.