Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Snappify - snappify is a great tool to create and adjust beautiful code snippets easily.
allTags - allTags is a free, tag based file management application.
Boostnote - Boostnote is an open-source note-taking app.
Tabbles - Tabbles use tags to organize and find files along with your colleagues.