Oftentimes, guests will send back response cards without actually writing their names on the RSVP—talk about confusing and frustrating for the host! The next time you send out invitations that require mailed response cards (think a formal wedding or shower), invest in an invisible ink pen with a black light ($7.50 for a four-pack, Amazon.com)—a.k.a., a “spy pen.”
When creating your guest list, assign each guest a number. Then, when you pack your invitations, write each guest’s corresponding number on the back of his or her RSVP card with the invisible ink pen. If you receive a card without a name on it, just shine the light where you wrote the number. Your guests will never know, and you won’t have to spend precious time tracking down the mysterious repliers!