One of the most convenient features of this tool is that it allows you to organize your notes in multiple ways. Although the program supports full-text search, the easiest way to find a given note is by using descriptive tags. And fortunately, tags can be organized as tree-like hierarchy, which certainly contributes to a better organization. More than just that, you can create autotag rules, for the notes to be tagged or moved between sections automatically when certain conditions are faced.
A very easy-to-use and lightweight note-taking app.