Posting to the X4U mailing list, Judi S. noticed that both InDesign 2 and Photoshop 7 allow for keyboard manipulation of any numerical value. Judi writes (and gave permission to repost here):
You can manipulate *any* measurement with the keyboard. This works in dialog boxes (such as Paragraph Rules...) and palettes (such as the Type or Paragraph or Info). Just click on the unit of measurement to the left of the input field. So if you wanted to change the width of a box you would click once on the "W:" in the Info palette. Now use your up and down arrow keys to either increase or decrease the measurement (set the increment in the preferences). This is wonderful if you want to adjust a drop shadow, or change kerning, or nudge something. No fudging with numbers!I'm not sure if this was a feature in previous versions of the programs or not, but it seems like a real time saver.
In OS X, you get a progress bar on the Photoshop dock icon! No more clicking back and forth to see how things are going!A great example of how the dynamic nature of the dock can be put to good use.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20020423004553744