An Emergency House

To build an emergency House in minecraft, You need walls so mobs can't touch you, a chest,and a crafting table.  I like to use a bonus chest. Because you don't have to make your own and it comes with helpful things. It is mostly wood, but it helps. Then I like to use caves for a house. I have one world were I found a cave with Sandstone on the ceiling.  I broke a brick on the ceiling and a tower dropped down.  in no time I had a wall