Organize and name files meaningfully.
What makes sense for you:
Use file naming conventions for related files (see File Naming Conventions Worksheet below)
Possible elements for file names:
Use open file formats for long term storage of data: Some file formats are less susceptible to obsolescence than others
Project- & folder-level
Use Readme Files
Datasheets for Datasets. by Timnit Gebru, Jamie Morgenstern, Briana Vecchione, Jennifer Wortman Vaughan, Hanna Wallach, Hal Daumé III, Kate Crawford. This article is a good overview of creating machine and human readable documentation for your data.(last revised v.7, 2020)
Another option is to use an Electronic Lab Notebook. A comparison chart was developed for Harvard researchers if you are considering using one.