Response Card Help

Hey Ladies... for all who have mailed out their invites already, I have a question. How do I go about numbering the response cards? I heard some talk about invisible pens? Thanks Ladies..

Yeah, I jumped on the invisible pen bandwagon. Ordered 2 from a website (don't remember the site). They were really cheap!

Then, when I recruited DF's family to help me stuff and address envelopes, we couldn't think of a system to make sure that the correctly numbered rsvp went with the right person.

So I scratched the whole numbering idea and didn't bother. The only rsvp card that came back that I was confused about was DF's grandma - she put her late husband's name instead of her own.

But every other card, I was able to figure it out without a number.

If you're really hell-bent on having those invisible pens, FM me. I could even mail you one extra one that I have - if you want.