I have been wondering how to do this for literally years, and today I finally found a program that does it.
If like me (on my work pc anyway) you have a huge load of windows open at any one time – and also spend all day closing and opening new ones – things can get a bit messy. I have a very specific order I want them in, and if that gets messed up, I need to shut them all down and reopen in the right order which takes ages so I usually don’t bother.
Taskbar Shuffle is a program that fixes this problem – and allows you to reorder your taskbar and system tray icons!
Cool!