Assuming by your non-specific 'bookmarks', you mean Browser Bookmarks: Periodically, (meaning 'when I remember') I save my current browser bookmarks as a .html

Assuming by your non-specific 'bookmarks', you mean Browser Bookmarks: Periodically, (meaning 'when I remember') I save my current browser bookmarks as a .html file in a specific 'bookmarks' folder in my 'Documents' directory. These files get named 'bookmarks_YYMMDD', thus they are automatically sorted by date. Being .html files, they are automatically also plain text files, and can be searched easily using standard tools like 'grep'.