Elytra glitch- Become 1 block tall! (survival) (no command blocks)
Using an elytra, a daylight sensor, and a cobweb, you can become 1 block tall! You can mine shafts, craft, do everything normally, except be 1 block tall!
The game doesn't like this at all. Any 1x2 holes nearby will attempt to suck you in. You have to sprint away or place blocks so you can't be pushed in.
This base is good because
-Allows faster digging times because you are mining a 1x1 versus a 1x2
-makes it impossible for any mob surprise attacks except from spiders (no more creepers blowing up your base)
makes it hard for enemy players to get in (they have to dig around to get anywhere and cannot whack you easily
-if your roof if made of daylight sensors, you can sneak to see above the daylight slabs.