ConEmu - a Windows Console Emulator with Far Manager plugins. ConEmu was initially created as a Far Manager companion or a kind of graphical interface for the old school but oft-used two-panel, console file manager. ConEmu includes options for visualizing Far editors and viewers with tabs, dragging files and folders, customizing panels with background images and more.
Smoothwall - an Internet firewall with an intuitive interface that runs on commodity hardware. Smoothwall is a specialized Linux distribution that turns a spare PC (or VM) into a firewall. It features a caching Web proxy, VPN service, DHCP server, and other assorted network services. Smoothwall Express is a solid, secure firewall that is safely maintained and administered by people who are not IT experts, much less network security experts.