Create relevant file names prefaced with a category that identifies the information's type or purpose. And if you save large numbers of files, create separate folders for articles of similar info moving them into the folder that you've given a relevant name. In the photo app folders are referred to as "Albums". Create document names long enough so that you'll know almost exactly what's inside w/o opening them, but short enough to minimize typing. Self-help articles I consider personal development thus "PD".
Once you name the article Adobe automatically sorts it resulting in similar content being in close physical proximity to other articles of like content.
PD, How to Network
PD, Choosing a strategic seat in the board room or at a social dinner