Its amazing how often photoshop can make me feel like a noob. This program is ridiculously deep and has 50 different ways to do everything.
For the past couple weeks as Ive been drawing photoshop has been randomly switching to another layer. Its been a bit frustrating, and breaks the flow of drawing. But its a feature not a bug.
I have alt set up as the button on my wacom pen so I can quickly get the eyedropper. I also have the touch strip set up to scale up and down on brush size. I had been accidentally hitting them together... (alt and [ or ]) which scrolls through your layers. Hot damn. I like it.
Another recent (but less useful) discovery: A friend recently showed me Alt Ctrl move which duplicates your selection (into another layer if the selection is not on the background) but he was mystified by something I had been doing with it. Alt ctrl nudge (arrow keys) stretches the edge most pixels of your selection. Neat!
So what have you learned about photoshop/painter/maya/oils that made you feel like a fool recently?