Tweak your Mac OS settings
TinkerTool is a small, free app that lets you tinker with your user preferences, allowing access to options that you can't find through System Preferences. These "hidden" preferences--extras like adding scroll arrows to both ends of scroll bars--exist for a variety of reasons, but are usually invisible to users without the help of an app like TinkerTool.
TinkerTool's preferences are organized under 10 main headings: Finder (for options like showing hidden files or restricting the Finder), Dock, General (a lot of useful options, including control over scroll arrows and screenshot file formats), Applications, Snow Leopard (with … Read more