All my cards are stored in 3200 count full lid BCW boxes. Nothing is in a sleeve. I’ve debated many times of splitting some of my cards off and sleeved or in a binder on their own, but I always change my mind and discover each time I don’t have the time to do a project like that. All my cards are in TCDB set order, and I have my baseball boxes separate from my basketball boxes. This setup may change one day, but I just don’t feel motivated to spend the time or money to do so right now. When I want to look at my cards, I use a BCW divider as a bookmark and pull out a little stack at a time to look through. I am happy enough that they are well organized and take up the least amount of space possible. Oh and these are all single copies of cards. My duplicates I give to my son. Occasionally I have traded some, but I’m not a very big trader.