I'am writing tutorials for Photoshop and Photoshop Elements in the Serbian language and you can see it here http://bzivkovicsavke.blogspot.com/ and here http://www.creemaginet.com/sajt/blog/6302, also wrote a manual for use Photoshop Camera RAW http://books.google.com/books?id=bZfirtVh4cwC&printsec=frontcover&dq=photoshop+camera+raw+ za+jpeg+i+tiff&hl=en&ei=Pe3WTOKjIIyWswb-2oTcCA&sa=X&oi=book_result&ct=result&resnum=1&ved= 0CCwQ6AEwAA#v=onepage&q&f=false, currently writing the manual for use of Photoshop Elements and I think it would be extremely helpful if Photoshop and Photoshop Elements have a screenshot feature, because I could make a screenshot and immediately processed in Photoshop or Photoshop Elements without having to jump from Photoshop in Snagit to each new screenshot.
What i usually do is use the Print Screen key for the whole screen and Alt+Print Screen
for dialog boxes. This automatically copies to the system clipboard.
Then in photoshop elements use File>New>New from Clipboard and for photoshop
make an action New from Clipboard.
I know for print screen but what about meni drop down lists, and sometimes you need time delay.