Virtually every Photoshop project starts with Open (how often do you choose New?) and ends with Save. And unlike other apps, Photoshop treats all image formats as native. Open and Save are the alpha and omega of imaging.

Photoshop CS5 Top 5 Tip #5: Common Sense Enhancements

Imaging expert and award-winning author Deke McClelland presents his list of the top 40 features in Photoshop. Some are tools, others are commands, still others are conceptual. All are invaluable. Learn this 40 feature and you'll know Photoshop.
		Special bonus content: Deke's Photoshop CS5 Top 5, which covers the best new features in Photoshop CS5 in just five easy-to-watch videos!

Photoshop Feature #1: Open and Save