A very interesting and timely topic. Let me tell you of my experience. Recently while I was watching "Garage Rehab" I had an epiphany. Garage rehab BTW is a TV show on Discovery where Richard Rawlings buys into struggling repair garages and turns them around. The first thing he does is throw out everything the garage owner has. Everything to the bare walls. Well, my epiphany was "why am I keeping all these magazines?". I'm talking 30 years of Model Railroader, 25+ years of OGR, 20 years of Fine Scale modeler, 25+ years of CTT, catalogs etc. You get the idea. This stuff was so overwhelming, This stuff takes up so much space, I couldn't function. I decided right there and then to get rid of all of it.
Since I had the 25 year DVD of CTT, that was the first to go completely without a thought. Then I decided to look through all the remaining magazines and where I found a useful article, structure plans, equipment scale drawings, track plans and the like, cut those out of the magazine and pitched the rest.
Lets face it, 80-90% of any given magazine is advertisement. Not something you really need to keep. Just think of it. Of the storage racks of "paper" that I had accumulated, 80-90% was worthless. That thought made the decision to cut ties, emotional, sentimental, or whatever, with this stuff, easier to live with.
in the end, I have a single box with the articles, how to's, etc that I really find useful. Now the task remaining is to organize my saved articles into categories, Structure, scenery, Equipment, how to's etc. into binders for easy reference.
Just one more thought, I haven't subscribed to MR in years, but having access their online digital archive makes it tempting. (to OGR Hint, hint). My remaining subscriptions just might all be digital as well.