I am using LibreOffice Writer that is structured with Headers so I can quickly jump on right section from the side bar. Also am always adding the source of info

I am using LibreOffice Writer that is structured with Headers so I can quickly jump on right section from the side bar. Also am always adding the source of information at the end of particular piece of the note and saving that source (webpage, book etc) in similarly structured folder next to the note file. Started doing this several years ago and works well for me.