Card Savers in sheets [2 or 4 pocket depending on the size] and the sheets in Unikeep binders:
They are clamshell so they stack equally or stand rigidly on shelving, take up much less space than a traditional 3 ring, and prevent the sheets from twisting all over the place along the open edges of a normal binder or snagging as you move them around. Also 100% inert polypro construction.
Photos go into polypro pages with archival board behind them, or if small enough, into card savers and the aforementioned pocket pages. Also in Unikeep binders.
Graded cards, which I have relatively few, go into waterproof boxes meant for food storage.