On a UX stance, what are the best practices to consider when designing a business card?
I've done some research in order to find some that I might not have considered and I have to admit that I've found some hardly believable opinions such like these ones (from : http://commadot.com/the-ux-of-business-cards-2013/ ) :
No QR Codes or other advertisements. It’s tacky. It takes up room and detracts from the experience. Your card has one purpose, to communicate who you are. Don’t try to make it interactive.
No QR code in the era of smartphones?? Really??
Don’t make the card all dark colors. People often want to write something on the card. Give them space and light backgrounds to do so. Make it easy to write on.
In Japan it's considered 200% rude to write something on a business card. It wouldn't cross someone's mind, really.
Anyway, what are the best practices to consider when designing a business card?