Thank you, everyone. Thank you dear colleagues ... Send them a thoughtful note or card with heartfelt birthday wishes for a friend, showing them how much their kindness meant to you.

But once you're done basking in the well-deserved flood of birthday attention, you've got to reel it in and thank everyone for the kind words. Which can be overwhelming! People took the time out ...

From chemistry themed invitations and thank you cards to double helix candy ropes ... adds an ingredient of science fun to your child's birthday celebration. Party Planning Timeline 2-4 weeks ...