As the Nebraska Cornhuskers Football collector. Over 9100 cards 798 players. I have them in binders by the years (except a few) inside the binder they are by brands. (as listed here) Each brand may have only 1 card or many. Then I try to have them by the card number. It is nice to see the base set and the next page a parallel set and so on.
I do have a binder of just Police sets due to the fact there are many cards in the 80s and 90s that are local/team issued cards
Another binder for all my Nebraska schedules. Then one for the Nebraska issued sets. 2 binders with the encase/slabbed cards and 2 for the oddball cards. Total 32 binders. Years from 1933 to 1990 is in one binder but but year 2007 has to have 2 binders to fit all the cards. I build a shelf for them but at this time I need to build another one.
Biggest issue I have to move cards at times to get the new cards in the right place.
That is just me