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One common complaint about Vista's Network and Sharing Center is that it takes too many clicks to get to common network-related tasks. One solution? Add those tasks to the Quick Launch bar, and then click, right-click, or use the built-in keyboard shortcuts to jump straight to those actions. Here, I've added shortcuts to the Network and Sharing folder, the Network Connections folder, and my wireless connection.
For a more detailed discussion of this and other Windows Vista tweaks, see 10 top tweaks for Windows Vista, Part 1