Windows/Linux: Free note-taking app Incollector is a pretty convenient and lightweight way to keep small bits of data close at hand, while also keeping everything organised and easily accessible. Pull up Incollector from the system tray and tell it what kind of note you're adding—conversation snippet, web address, plain text, among others—and what tags apply to it. Add comments, give it a star rating, and all that data can be used to create saved searches, filter by tags or ratings, and even search from the system tray by right-clicking the icon. Incollector isn't a high-powered, universal note collector, but it fills its desktop role nicely. Incollector is a free download for Windows and Linux systems.