Food for the bride and groom.  This one goes out to all the bridesmaids, groomsmen, family caterers, etc.  Make sure the bride and groom get fed during the reception!  Too often the couple gets pulled away from their meals for one reason or another (photos, dances, socializing, etc, etc).  As a general rule I would suggest that a to-go box/plate should be made for them regardless...period!  So brides, make sure you either assign this task to someone or make sure your caterer does it.