One of the best tools to come out through OpenNTF is the File Navigator widget available for download here. The screenshot tells it all:
If you're the kind of knowledge worker who bounces between Notes and Symphony throughout the day then you'll find this tool invaluable. I especially like the drag and drop for email attachments - goodbye paperclip! Thanks to Xiao Lei, Jian Kang and Rene Winkelmeyer for this masterpiece.
NOTE: You will have to upgrade to R8.5x to use this widget.