How can I take screen-shots of things on my computer screen?

What OS?

In windows you can press the “print screen” button and then paste it into a document.

use Grab in Mac OS. It’s in the utilities folder.

or (on OS X) you can go to sys prefs—> keyboard and mouse—> keyboard shortcuts and see the shortcut you can also reassign the shortcut to something easier (mines F7)

Also in windows if you only want a screen shot of the active window, hold down alt while you press print screen.

For Mac
cmd + shift + 3 (whole screen)
cmd + shift + 4 (selection)
cmd + shift + 4 + space (current window)

CTRL+ALT+PRT SCR is what i use

I just use ALT+PRT SCR. Is that any different than CTRL+ALT+PRT SCR?

I use a program called SnagIt and love it!

@ intro- i tried what eambos said and that works just like both of ours do, haha, a lot easier than pressing three keys, too