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.
Safe: Use text expansion for trivial yet long texts like your emails, addresses, etc. to almost eliminate errors in those texts. Espanso is something I use on Linux Mint, while macOS supports text expansion natively. I am yet to find something that fills the gap on NetBSD, but I almost exclusively use emacs on those machines, which has native support for snippets.
Unsafe: Remove USB drive without ejecting it. :P
Contrived yet neat: With special software (BetterTouchTool on macOS) or keyboard firmware (QMK and ZMK, which is what I use), one can use Spacebar as a layer key (SpaceFn, as it makes Spacebar behave as a Fn key) to unlock neat shortcuts like navigating using HJKL, add macros, remap hard to reach keys on to the home row, etc. There are other things that can be done such as one-shot modifiers which make typing less straining.
P.S. The snark in the comments here is surprising. Everyone starts somewhere. Let us be welcoming.