Taskbar Shuffle (64-bit version)
Taskbar Shuffle lets you rearrange the order of applications on your Windows Taskbar. Drag an item to another spot on the Taskbar and drop it. I use it to keep items in the exact order I want. If you feel like living on the edge, let it shuffle the system tray icons. Way cool.
Note: This software comes in 32-bit and 64-bit versions. This is the 64-bit version, which is for 64-bit PCs running a 64-bit OS. If your PC is running a different supported OS, please download the 32-bit version instead. This program is donationware. It is free to try, but the author accepts and encourages donations towards further development.