Add Yahoo as a preferred source to see more of our stories on Google. Prostock-Studio/ iStock via Getty Images Birthdays aren't meant to be serious, and neither are birthday cake messages. Stand out ...

Look to these unique and heartwarming messages to really make their day.

Birthdays come but once a year. So, when a friend, loved one or coworker is celebrating their special day, it's important to do it up right. Whether you mark the occasion with a card, presents, cake ...