For a while I would work as a coder during the day, and in the evening I would work in the mines, for my son. "Dad we need more iron ore. Dad, make sure the furnaces have coal in them." Eventually my kid worked out that you can build generators, effectively coding it in MC bricks and providing infinite resources. Probably the first time he's coded something, he just doesn't know it. This made my evenings a bit less m…
Minecarts get to be more useful when you want to travel long distances without having to touch the controls. TNT... personally, I've never found a use for it.
This and you can (and should) build roller coasters.