Business cards are great for many things. One of my favorite is origami. They are also great to leave notes for customers. If you frequently go out to your customers offices and sometimes they aren’t there, leave them a business card that says, “Sorry I missed you, I’ll call you later.” If you write that on the back of your business card, you are leaving them a nice note to tell them you stopped by, but also letting them know you are serious. You left a business card.
I also use my business cards as reminders. Whenever I set an appointment or schedule a meeting, I write it on the back of my business card. At the end of the day or week (whenever I get around to it), I pull these business cards out and type them into my computer. Then I set my reminder to remind me of that appointment.
Because I always carry business cards with me, they are the perfect note card!