I'm a wedding planner who has seen wedding guests do many things they should never do and make common mistakes, such as not RSVPing on time.

"I got some criticism of it being too harsh," Nishma Mistry said of the message she wrote Erin Clack is a Staff Editor for PEOPLE. She has been writing about fashion, parenting and pop culture for ...

The RSVP card that guests return ... use this card to tally responses for other wedding weekend events—like the welcome party or day-after brunch. “If you are trying to plan transportation ...

You can, of course, forgo response cards altogether and direct guests to RSVP on your wedding website ... and a day-after brunch, it's a good idea to include a full itinerary for guests, so ...