Fast Travel System

Say you just found a giant trial chambers, but you die before you could write down the coordinates. Your devastated because it was over a thousand blocks from spawn. Introducing the travel portal! With five iron blocks, two redstone torches, and one redstone block you get two fast travel portals. Place one at your house and one where you want to travel to. when you place them down you could name them, so you know where you're going. before you go through the portal you open up a menu to choose where you want to go. Now you'll never forget where any thing is.