productboard - Beautiful and powerful product management.

Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.

ConTEXT - ConTEXT is a small, fast, powerful and highly compact text editor for the Windows operating system.

Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.

Aha! Business Model Builder - Create the perfect strategy for your product roadmap

Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++