Enough plushes to cover the head of my bed and top of my display cabinet, a couple shelves worth of toys/figures, my cards (2 big binders and a few smaller binders, excluding extras, plus a few shelves of displayed cards), the old gold-plated Burger King cards + Poké Balls, video games (at least one per gen plus some of the spin-offs), Pocket Pikachu 2, Pikachu N64, Zacian and Zamazenta Switch Lite, the classic Pokédex, a Pikachu gumball machine, candy dispenser, and bottle cup, a Squirtle coin bank, a few jelly jars (only the Kanto starters + Pikachu survived over the years), Pokémon Monopoly and some kind of spinning top game, a puzzle, a Poké Ball bag, a few posters (would have more but the cats destroyed them), movies 1-8 (excluding Deoxys) and some of the episodes, RBY Pokémon Adventures saga and a few other books/magazines, a few throws, a couple bedsets, several tins, coins, marbles, stickers, and probably a few more misc. items.
Most of this is from my and my cousin's childhood collections + gifts. Very rarely do I buy anymore.