Ever since that Radiohead/Meatloaf/Eric B. & Rakim mix tape won me the love of Lucy Fillmore in the 10th grade, I’ve had a soft spot for the art form. But try to hand your crush an actual cassette these days and you’ll be dumped faster than Adele hits the 99-cent buffet. Sharetapes represent the 21st century version of mix tapes, as they use physical cards that contain NFC (Near Field Communication) chips and QR codes to let you play back the hand-selected gems on smartphones and tablets. Just bump phones with your girl she’ll get the coolest (in your eyes) and cheapest (in hers) gift a guy can give to his lady.