Mine is using the arrow keys to navigate typed text while writing and editing. It helps speed things up, versus having to move your hand to the mouse to navigate.
Use the Up and Down Arrows to move/jump vertically.
Left and Right Arrows to move/jump horizontally.
Combine Left or Right Arrow with Shift to be able to select text. Use Up or Down Arrow with Shift to quickly select whole/nearly whole sections of text.
Combine Control with Left/Right Arrow to jump whole words to more quickly move to where you want to type.
Wait until you learn about vim keybindings. Instead of moving your hand to the arrow keys, you can stay on the homerow and movie up down left right from there.
I had to read the post twice, is the arrow keys the life hack? zu the fold, }} two paragraph and 3) to jump three sentences is. And we haven’t mentioned macros yet