I was reading
Macworld Plus today, a very snazzy oversize publication from the people who put out Macworld UK (which seems much better than the one here).
They have a large section on tips for OS X Panther.
One great tip is that you can print address labels directly form Address Book, with stylized fonts and pictures.
I mention it because it's a thing I didn't know, and find useful.
Any other great "Did you know Mac OS X could...." tips? Please post them as I'd like to know.
