I went from keeping a simple and cheap paper lab notebook to just using MS-Word. Paper notebooks were fine in the olden days, I could tape in tables or diagrams from books. But paper is hard to search and organize and move from desk to desk and job to job.
I simply keep an MS-Word (or Google Docs) file where the document starts with several tables, such as charge codes, assigned staff contact data, assigned staff current assignment, and a To Do List.
Then I have a current to past date order where each date has a header with the date in Bold (using a style) and is followed by note lines indented to make each entry easy to spot and follow. When I read a document or reference a file, I add a hyperlink to the item in my notes.
With MS-Word i have active hyperlinks, I can paste in tables or diagrams, or Dilbert cartoons. Every three months I close the file, write lock it, and start a new one from the previous one. To shorten the file, I trim old entries from the current one because the original file is intact. Eery month I print the current one to have with me for reference. Each file ends up about 40 pages. I currently have less used tables at the end of the file.
My oldest one still opens and has its original file time stamp. If MS-Word ever announces it will obsolete a format, I could convert them to Google Docs or save in the new format. Lets face it, MS-Word is a defacto standard. It is used everywhere now. I have used these files on both Macs and PCs.
My method has saved my sorry ass many times. When did I talk to such and such about something? I search the files and I have dates because I record a brief summary of every discussion I hold with names. Personnel issues, I have notes. Document lost? I have links and the dates I read it, even if the link is broken, I have a record. Travel, I have a record. Meetings? I have a record with notes.
Do I want to trust a third party like EverNote, No.
Have I ever lost one of these files, No. I have them at work, at home, and on Google Drive.
The records have helped me trace missing circuit boards since recorded to whom and when I sent them.
I started using this when my manager, before I became one, would ask me if I was working on something. If I had no record of when we talked and what he said, I was at fault for not working on something. When I started keeping records, that problem ended.