18 Things People Regret Doing on Their Wedding Day — Learn From Their Mistakes

"Set up a wedding site and have people RSVP there. The amount of stress I put myself through trying to get paper mailed back to me in an era when no one uses mail anymore was so unnecessary. At one point we'd gotten very few RSVPs back and I had a total crying meltdown about how no one was going to come. Of course they were going to come; it's just no one uses mail anymore. Save yourself the headache and the money. It's my biggest wedding regret."