Typewolf - Typewolf helps designers choose the perfect font combination for their next design project—features web fonts in the wild, font recommendations and learning resources.
dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
Archetype - Create beautiful web typography designs, in the browser
Duplicate Cleaner - Duplicate Cleaner: the fastest and most popular tool for finding duplicate files. Over 1 million downloads: Get your copy now! Free and Pro versions available.
Fonts In Use - Type in the real world: an amazing archive of typography.
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.