I've had a subscription to National Geographic for about ten years. Each year, for the low price of $19.70, National Geographic sends me two feaux leather slipcases to hold that year's collection of magazines. The magazines slide into one side of the case and on the other side, there looks to be actual binding. In the end, the magazines are well-preserved and look much more attractive stored in their protective slipcases on the bookcase than otherwise. (For reference, check out the National Geographic website. Look for the "Deluxe Slipcases.")
The point of my writing this to you? Why not do the same for Dragon (and Dungeon) magazines? You could do the same with some sort of feaux leather slipcase, with Dragon (or Dungeon) on the "binding," as well as the year (and Issues). I'm sure you all have enough creative talent to make the slipcases look really sweet. (And feel free to back date the slipcases as well! National Geographic has. ... Not that you're National Geographic! Personally, I like...
You can get cardboard magazine boxes fairly cheap. What I would like is an annual index.