Rich Gee September 14, 2011 Blog, Business Coaching, Career, Coaching Tip, Ways & Tips 5 Mistakes You Make With Business Cards. Rich Gee September 14, 2011 Blog, Business Coaching, Career, Coaching Tip, Ways & Tips They bring me business and success everyday. That's why they are ALWAYS in my left pocket. But most people either don't have them (shame on you) or if they do — have terrible ones. Here are some mistakes people make with business cards: