Some years ago I did a set of things I called "tips from the other side".
Imagine you could talk to lots of couples that had been there, done that, and got married. What would they tell you was their big tip?
Here's one from the archives.
James and Louise
"The advice I wish I was given was 'don't stress about the details', because you'll probably still be halfway through your to-do list on your wedding day, and on the day you won't care because you'll be on cloud nine! Also, you could do every single thing on that list and more, and still you'll never think of everything, but it won't matter!"