So what's the current bride-to-be challenge that the former Hills star is tackling? The wedding guest list.
"I had one hard and fast rule: If we haven't sat down and had a meal together in the past two years, you're probably not going to be invited," she explained.
"Since all of my closest friends and I dine together regularly, this helps separate people I'm still close with from the friends that I've lost touch with over the years. I think it's a pretty fair rule."
But what's a girl to do when all her friends have long-term partners? Why, add a plus-one, of course!
"I also had to come up with some guidelines to determining who gets a plus-one," Conrad shared.
"A plus-one is a must for anyone who is married, engaged, or in a long-term relationship. No exceptions there! A plus-one is also thoughtful for anyone who is single, but won't have any other friends attending. But if someone is single and will be amongst friends or family, giving them a plus-one is not necessary. Who knows, they might meet someone special…"
The future Mrs. William Tell also explained that "deciding who will and won't be there to witness your marriage can be very stressful, but everyone is different and will have their own way of deciding."