Sometimes you may feel like, closing all the opened applications in one go as all these applications has already slow down your system and you may be working for long hours and may not have the energy to close all these applications on one by one.
Close All Windows is free application which is best for this kind of situation, it is quite program as it does eat up system resources like memory or processor because it flashes for a second.
Close All flashes a close signal to all the opened programs and windows, you can also set a hotkey to close all application in one go with close all.
Close All is really handy application quite useful many times, you can also close all opened applications by clicking the system tray icon windows task bar.
We would recommend you to place the program shortcut in quick launch,start menu etc.