Turning the big 4-0 is a momentous occasion, and as with any age milestone, it calls for finding the ultimate 40th birthday gift ... for one as important as 40. This mini letter necklace is ...

Birthdays always feel like big milestones, but there's something about the transition from your 30s to 40 ... birthday card and really want to pen a heartfelt message, we've compiled the best 40th ...