Taskbar Shuffle is a free program that lets you re-arrange your taskbar buttons and system tray icons. It is a simple program to use, very small, and is a free utility program. Reorder your taskbar buttons by dragging and dropping them, Reorder your tray icons in the same way, Reorder tasks in a grouped button's popup menu in the same way, Middle-click to close programs on your taskbar, Works with UltraMon taskbars, and Tweak taskbar button grouping. If you are a power user then this is the perfect free application for you. More Info or Download with Installer or with out installer

XNeat is a free application that adds display customization to extend the Windows Titlebar, Taskbar, and System Tray Utilities. It enables you to minimize a window to an icon in the system tray, make a window be on top of all others,re-arrange the order of taskbar items by dragging them, and hide any window or tray icon. Two cool things you can hide is the Start button and the Clock as well as many other elements. XNeat is very easy to navigate. It's integrated into the right-click menu. Learn more about the free windows extender or download it from this direct link...XNeat