UltraDefrag is a small yet powerful disk defragmentation tool with a simple and intuitive user interface. It's designed to optimize the performance of your computer by arranging scattered files on your hard drive in a contiguous manner. It is a valuable tool for users looking to squeeze every ounce of performance out of their hard drives.

TortoiseHg is an advanced GUI front-end for the classic Mercurial distributed version control system on Windows, Mac and Linux platforms. It comes with a comprehensive suite of graphical tools and a shell extension, and is often recommended and preferred for working with Mercurial.

Defold is a free and open-source game development framework for Windows, Mac and Linux platforms. It's renowned for its intuitive design, powerful features, and extensive community support. Its focus on rapid iteration and collaboration makes it an ideal choice for teams of all sizes, from solo developers to large studios.

Variety is a slim and easy to use wallpaper manager specially made for Linux systems, developed by Peter Levi from Bulgaria. It is free and open-source, packed with great features, and supports out-of-the-box most Linux desktop environments. It can help you easily change your desktop background with beautiful HD wallpapers, keeping your desktop always fresh.

Screen-sharing applications are crucial for online collaboration, particularly in business settings, and can serve various educational purposes. Despite the impressive capabilities of most screen-sharing solutions, they do come with a significant drawback: they can be challenging for less experienced users, especially during the setup phase. Additionally, almost all screen-sharing solutions rely on an Internet connection.