The last time I moved, about 6 years ago, I had over 4oo mags and I still buy 2 or 3 a month. My wife is a good sport but after awhile she asked me to please keep them in one area! While I like to occassionally pick up an old mag and peruse it, I decided that most of the bulk of each mag was worthless, except to a collector perhaps but I'm not concerned with that. So I decided to go thru them, I kept the ones which contained almost all articles of interest to me, maybe 10% of them. The rest I just ripped out anything of interest and put it in a file, sorted by headings such as locos, scenery, structures, etc. I have files for electronics, tracklaying, carpentry as well. As I get older and realize I won't have time to do it all, I've been saving less, and what I save is more closely related to my interests. At first I had saved a lot of things just because I wasn't sure where my interests may lead. Now, in addition to a folder for "locos", I have a folder "NYC locos", for example.
This works for me, I find things I want quickly, and have reduced the bulk of what I save.