I recently started recording product info (manufacturer, model, serial number, purchase date, etc.) to a Google sheet and locating all relevant documents (spec sheet, repair manuals, etc.) and saving those to a Google Drive folder. Sites like this are a really great resource when getting everything setup!
Having all this info readily available makes it so much easier to check if my device is involved in a recall right when I see a news story or doing preliminary diagnosis of an issue. I also set the folder to stay synced and downloaded to my phone to have the information available regardless of if the power is out.
A regular dump, say yearly, of the entire content into a torrent. It's probably several TB but I'd dedicate a disk to it, because the info is solid gold, and it would be an incredible loss if it got taken down someday.
I'm not sure if they still do this, but when I signed up for an account on Elektrotanya many years ago I had to pass a basic electronics engineering quiz in Hungarian. Google translate worked well enough and I passed, but I thought it was marvelous.
Having all this info readily available makes it so much easier to check if my device is involved in a recall right when I see a news story or doing preliminary diagnosis of an issue. I also set the folder to stay synced and downloaded to my phone to have the information available regardless of if the power is out.