Contexts - Switch between application windows effortlessly — with Fast Search, a better Command-Tab, a Sidebar or even a quick gesture. Free trial available.
RBTray - Allows almost any program to be minimized to the system tray by right clicking its minimize button.
Witch - Welcome to the world of W. i. t. c. h.
4t Tray Minimizer - 4t Tray Minimizer Free/Pro - Minimize Outlook, Internet Explorer, Firefox, Chrome and any other applications to the system tray!
Hyperswitch - HyperSwitch provides a compelling alternative to HyperDock for keyboard junkies. What's New
SmartSystemMenu - SmartSystemMenu extends system menu of all windows in the system