Hi. (I know our cohort session is over, but many of us may be coming back here for modules, so I'm assuming this Q&A forum will still have readers.) In another post, Karen mentions maybe having a QR code for getting her newsletter on her business card. I've never dabbled in the world of QR codes (except for reading a menu). Does anyone suggest a place I should start in learning how and when to generate and use them? I'm also hearing about digital business cards....Anyone use those and have thoughts about whether they're worth having?