Windows 7 introduces a shell update in the form of a new taskbar and main experience window. Its got some improvements over Vista. Heres my list:-

Pin most used programs to the taskbar

• Right click and choose 'pin to taskbar'

Find a file instantly:

• Click open the start menu and start typing in the search box at the bottom of the menu, then
• Select from the list of search results which appears

Microsoft say that 'if its on your PC it cannot hide from Windows 7' which may not be exactly what you want

See all your open windows:

• Hover the cursor over the program icon to see all open windows then
• Hover over the previews to see the full screen
• Click on the preview in question to switch

Take a sneak peak at the desktop

• Windows Key plus Space

Use 'Jump Lists' to keep your desktop free pf clutter

Theres a jump list for each program in the Start Menu and TaskBar. With One Click you can:

• See recent web sites in IE8
• Drag and drop from the Jump List to Outlook as an attachment
• See options to play recent songs in Windows Media Player

Compare 2 Windows Side By Side using 'Snap'

• Drag the window to either side of the screen. When you get to the side the window will snap to half of the screen
• Drag the window to either top or bottom of the screen. When you get to the edge the window will snap to half of the screen vertically
• Windows Key + Left Arrow to snap to half screen
• Windows Key + Right Arrow to snap to half screen
• Windows Key + Up Arrow to maximise
• Windows Key + Down Arrow to minimise
• Windows Key + Shift Up Arrow to maximise and restore vertical size
• Windows Key + Shift Down Arrow to maximise and restore vertical size