Windows only: Lightweight note-taking and outlining application ActionOutline Lite organises your notes or projects in a hierarchical view with the notes on the right-hand side.The free (Lite) version of ActionOutline restricts you to 7 sub-items for every parent item, but you can have an unlimited amount of total items. The tabbed interface lets you load multiple outlines so you can manage several different buckets at a time. The application itself is impressively responsive and low on resources, but unlike the more full-featured Evernote>, it doesn't have integration with other applications or a mobile component. This app has been a standard part of my daily routine for years because of the excellent keyboard navigation, and it restores almost instantly from the tray with the built-in Win+A keyboard shortcut (configurable), making it excellent for quickly taking notes. ActionOutline Lite is a free download; the upgrade will set you back $US39.