What are some "no brainer" inventions or features that just haven't made it to the consumer yet?

useful implementation of AI silo'd to the applicable function.

some examples:

• "rename these images with X pattern, add their description to the meta data"

• "correctly capitalize all the names in my address book and tag them by how i know them"

• "show me how much i spent on fast food last month"

• actually good and useful autocorrect / spell check

• find all the emails about Jane's wedding next year and let me know where we are with the planning

• find me an app for windows desktop that does XYZ

edit to clarify: I know there are algos and LLMs that do this, but I don't want a "machine" that does all of them, I want a machine that only does each one really well.