I'm getting married next week. Holy crap I'm getting married next week! Calm down. It's okay. Everything is in order thanks to a my iPhone.
I was flipping through a Real Simple Weddings magazine and I found their version of the to-do list. It was three pages long, in a small font. THREE pages! That's insane. It's just a freaking party with some paperwork people. There's no need to overdo it.
I didn't get any issues of Modern Bride, Martha Stewart Weddings, or any of any of the other typical wedding magazines. I did get two wedding books, but I only read one of them once and was done. I never opened either of them again. Primarily, I used the internet and my iPhone.
Early on in the planning stages, I found the iWedding iPhone app and relied it almost entirely for the timeline of to-do's and storing all of the budget and vendor contact information. It gave me a good idea of what needs to get done and how many months/weeks/days it needs to get done by.
The list was simple and not overly complicated and it covered the major points - venue, catering, officiant, flowers, and music. Once you get those out of the way, then it's just details and your vendors will usually help take you through those.
There were lots of other features beyond the to-do list, but to me, that was the most helpful. I hardly touched the other features.
If you're planning a wedding I would highly recommend this app. It made the the whole process relatively simple and stress free.