I like that idea of the person whose birthday it is in charge of the next one...very clever and it's not all on you!!! Also, if you don't have a budget limitation, what about adding some sort of gift card to that card that everyone signs...could be for Starbucks, a local restaurant, whatever. If your office has a cafeteria, maybe they could get a voucher for a free lunch on their bday or something?? I also think it's nice to post up the birthdays in the break room or send out a calendar listing everyone's birthday for the year of something. Everyone likes to feel special on their birthday, so if you can do it all!! ;) I think when we grow up, and especially when we have kids, we rarely have days to ourselves and a birth is something to be celebrated for sure!