I am not sure what your starting point is, but for me a developed roll always comes in a long sleeve - either it is returned that way from the developer, or if I did my own developing, I will put it into a strip of sleeving material myself as soon as it comes out of the dryer. I immediately cut the sleeved roll into strips of 2 frames each (that's what I can get away with for my scanner, but cutting into single frames would work too). Then when done, I simply return each strip to the same section of cut sleeve it started from, and all sleeved strips from that roll go into a standard business-class envelope, marked with identifying information. These envelopes are in turn simply filed in a storage box.
So for better or worse, that is what I do! It is not a very sophisticated storage scheme, but it seems to work for me. For reference, the sleeving material I use is
one of the ones listed here from Climax Photo. I have been using this same single roll I purchased several years ago and still I am a long way from using it up. You should know that the sleeving material itself is archival, but whether the envelopes and box are too depends on how picky you want to be about it.