... ATL PrintScreen ... then paste it...
...lol it takes more effort to download a program to do it than it does just to do it ...sadness
that program does more than just copy your full screen to a buffer (which you would still have to open another program and then paste it to there and then save and close that new program)... the link listed above actually creates a JPG of either the entire screen or just the window or just the selected area... and it included (or not) your mouse pointer
all with the click of one button and no others
this makes it possible for me to post several screen shots all within a few seconds - and it's the very reason why I'm always attaching pictures to my posts... see for yourself how easy you screen capture life can actually be... why make it so difficult