Windows< only: Proxy Switcher Lite is a tiny application that allows you to easily choose between proxy servers without having to open the settings panel. The application runs in the system tray, providing a context menu that switches the current connection with a mouse click. Once installed, use the Show Manager panel to add in your proxy servers. (Use the "Notes" field in the properties screen to give you proxy a friendlier name.) This simple utility has been an essential tool in my kit ever since I learned how to encrypt my web browsing with an SSH SOCKS proxy to give me some privacy while browsing at work. Proxy Switcher Lite should work perfectly whether you're using Internet Explorer, Opera, or any application that relies on the Windows proxy settings. Firefox users, check out the previously mentioned FoxyProxy extension.