I have 12 years' worth of Burda WOF magazines. I was almost going insane trying to keep track of all the designs I wanted to try; I could never remember which issue they were in. I knew something had to be done.
I tore out the two pages at the beginning of the instruction section--the one where the line drawings are shown for all the designs for that month. I put these pages in a 3-ring binder and noted when I had traced out a design along with the size I had copied and if I had made up the garment.
The traced patterns I keep in gallon-size ziplock bags with a copy of that particular pattern taped to the front of the bag. I keep a slip of paper with the pattern detailing the garments I have made.
The magazines themselves are kept in those plastic magazine holders. I can fit about 6 in each holder.
Now I can keep track of Burda WOF without panicking. And I often peruse my 3 ring binder in bed at night, happily thinking of projects to be made in the future!
Update: I have added a photo of my bookcase. On the bottom right you can see the notebook and at the top you can see the magazines. Each file is labeled with the months of the magazines themselves. In the middle to the left are boxes of Threads magazines and the bottom left shows a box with the traced patterns. Without this system, I would be totally DISorganized!