Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Double Commander - Double Commander is a cross-platform open source file manager with two panels side by side.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
XYplorer - File Manager for Windows
Slack - A messaging app for teams who see through the Earth!