Dear Future Melisa, Mail merges, huh? They’re hard for us, for some reason. Each and every year when it’s time to get the holiday cards done and out, we pull up the handy-dandy Excel spreadsheet that has all of the addresses on it, updated throughout the year, and get ready to create labels in Word. And then, we go through an infuriating ritual. Looking it up online and then still messing up the process somehow turns what should be a joyful task (“Holiday cards to loved ones! Yay!”) into an absolute chore (“I am going to scream and possibly toss my laptop across the room if I can’t get this…