Minecraft wiki entry for Mining, associated text: If players are prone to losing the way back or simply want to be more safe, try marking their path with torches or another unique block, such as signs, wood planks or wool. This also helps them to recover their items if they die. Carving out a safe room containing furnaces, a crafting table, a bed and a chest might be well worth their time. If they spend lots of time underground, they may want to bring resources for a more sophisticated base with.