This document contains several tips and tricks for customizing Windows XP, including:
1. Making folders invisible by renaming them with a special character code and removing their icon.
2. Speeding up shutdown time by modifying the registry to kill services faster during shutdown.
3. Making desktop icons transparent by enabling a visual effect setting.
4. Hiding the Recycle Bin icon and "User Accounts" control panel item from view.
5. Creating a shortcut to quickly lock the computer without logging off.