I am very meticulous with information. Anything paper gets scanned and filed digitally. I have over 10,000 PDFs and I can find just about anything within 30 seconds.

For websites, I have a system to store links I can view online/offline from all my devices, if it is something I want to store permanently it gets put into my bookmarks and filed in appropriate category.

As for everything else, I extensive Markdown style notes categorized and tagged for easy review/discovery. If it is a process I care about, I will likely have a note on it stored and easily accessible.