I’ve traveled to numerous cities and countries around the world. Looking back, if I could do one thing differently, I’d send myself a postcard from every city I’d ever visited. I’d buy postcards from Prague, London, Basel, Paris, everywhere, capture the highlights of my time in each city on the back, and send it to myself. That way, I’d always have a souvenir waiting for me at home. You’ll never forget some of your fondest memories like what you did, who you were with, and what you ate. People tend to send postcards to friends and family whenever they visit a new city, but I challenge you to start this trend for yourself.