Here's a couple of simple observations that everybody probably knows about already, but here goes anyway...

When working with mutiple xar files for a single project, say a multi-page document, if you load them all in reverse order i.e. last to first, then when you Ctrl+Tab through the pages they will be in chronological order.

On a related note. In the XP file save/load dialog box that most programs use, you can create a new folder, which is very handy. But, did you know that you can carry out all the standard file manipulations i.e delete, rename, move, cut, copy etc. through the right-click context menu. I only mention this as I have not seen this referred to anywhere and wondered if everyone knew about it. I use this function all the time to move files or resolve file name conflicts and so on before saving or loading a file.