OK, I don't know if it's just me, but if I received a card that asked for an RSVP date, I'd just contact the person who sent it.To save on postage, and since etiquette "rules" told me I didn't really have to include one, we didn't use response cards in our invitations. Now I've gotten a flood of emails, text messages and such asking how they're supposed to RSVP. There is a return address on the envelopes. I'm panicking now, thinking I maybe ruined my DIY invitations. Thoughts?