@zenvelo my father collected stamps from when he was a child until his death a couple of years ago. He has (or rather we now have) books and books of stamps, trays of stamps, boxes of stamps, plastic containers of stamps, cake tins of stamps, box lids of stamps (pizza boxes were a favorite), drawers of stamps, envelopes of stamps, and have not yet decided on what to do with them. There is no rhyme or reason to their storage. At least not one that we can discern so it makes telling the ones of worth from the run-of-the-mill variety almost impossible; particularly if, like us, you have no expertise in them.
None of my sibs or any of our immediate family collect stamps. The only other family member who does is my uncle back in England. He and my father used to purchase and swap them. I imagine he has as large, if not larger, collection already. Neither his kids nor anyone their family collect them either.
My dad would buy four sheets of stamps at a time, put one away for his collection then send out two of the other sheets either on envelopes to family members who know to collect them and send them back, or send out stamped self-addressed envelopes to get them back. He always had way more postage than necessary because he had to have an unmarked stamp and a postmarked stamp for his collection, and not just a single copy of each stamp but of each different edged stamp; whether perforated on one edge, two edges, three edges or four edges. He would do this for the two sets, keeping one and, sending the other, along with an unused sheet, on to his brother.