Sending holiday cards is probably one of those things you either really love . . . or really hate. Maybe you find joy in selecting the perfect cards, penning a personal message, addressing the envelopes, and bringing them to the post office, or maybe you'd rather do anything but. Either way, we've got tips that will make the whole process smoother. Because at the end of the day, sending holiday cards is a simple way to let your family and friends know you are thinking of them during this celebratory time of year. Keep these essential things in mind as you spread a little bit of joy to everyone on your mailing list.