I have a fairly simple system for my computer files that I download or clip from the web.
I’ve made folders for the different areas of my life or areas of interest a’la Tony Robbins’ OPA/RPM life planning methods. For example I made the following folders

self study

As you can see these cover most areas of my life, yours might be different and you might have more or less areas. After making these folders I then could download info to them when I save a clip from the web or I could put documents pertaining to that area in the matching folder for later reading.

I also made the same folder names in Outlook so I could file my emails according to my life areas this makes review and searching so much easier.