Compressing Pages documents!
There are many features in OS X that are just not included with Windows, like PDF. Another one is zip. You can right-click on any file to compress it and it will create a zip of that file. If you are going to transfer a Pages document to a Windows or Linux computer, it is really better to zip it first, because Pages documents are actually folders. I often store documents on my Linux server and when the files come from iWork, I always use the "Compress" feature. The way it works is actually very useful as you can access all the media that is stored in the folder. You can look through the folder on a Mac as well using the "Show Package Contents".