Minecraft wiki entry for Safe_home, associated text: Maybe build a full obsidian bunker and an iron door on the very front. Obsidian is very hard to retrieve, so build a shell out of stone or cobblestone and cover it steadily with obsidian. Don't use a nether portal for your door, because if you have nothing to reset it, you can be permanently trapped in the nether and can't come home! Although, you can use a fire charge to relight your portal.