Minecraft wiki entry for Tips_and_tricks, associated text: In general, Minecraft rewards pack-ratting -- you never know when you might need those stacks of dirt for terraforming, or cobblestone to build a mob farm or something. Most of the items in the game have at least some use, if only as compost. At some point, you'll want to set up some kind of central storage in your base, classically a "chest room". You'll want to label those chests -- item frames can be useful, but remember that having too many of them in one place can produce serious lag and slow down the game. Some surprising items are salable to villagers, and every little bit helps -- stashing even your rotten flesh instead of destroying it can net you a few extra emeralds down the line. Some items, like phantom membranes, become more important later in the game.