There is a generation of tech users that downloaded TB of media for local storage. It’s just not something a lot of people do anymore but it created a psychological need, even if it’s not a technical necessity.
I treat my desktop as a temp dir and manually empty it every few days.
A desktop hygiene tip I read years ago (but can't remember where) is to increase the size of your desktop icons almost to the point of being ridiculously large, like 96x96. This way your desktop will "fill up" faster, forcing you to clear it more regularly.
Word has comments. They work well as todo markers if they don't need to be retained (just make a comment to mark something and then delete it when it is resolved).
Buy something (semi-)professional like the Panasonic NE 1840. There should be smaller, cheaper variants. The NE 1027 EYG will most likely work for home use. Commercial appliances are made to last and then be repaired.
meanwhile the local best buy is selling one on sale for $95 CAD. i'm all for simpler, knobs, etc., but that's a non-starter, and if i'm dropping $2000 on an appliance its going to be an espresso machine
You could also hire two interns to do it layer by layer, call it the consultant‘s solution.