I second this. You're likely to make mistakes. Wedding planners sometimes get relationship discounts on certain days things, the same way that tour agencies do, so they might not even be that expensive.
It was enough effort to learn that I tried to set up a wedding planning company after my wedding, only to find that everyone does that and it's not too profitable.
Come to think of it, it would make a good app. There's all kinds of baby shower and gift apps, I'd be surprised if there wasn't a good cheap wedding planner service.
