How do I take a screen shot/screen capture?

This is only a brief explanation, and I hope it makes sense.

For a full screen capture:
1. Hit PRINT SCREEN, copying the whole screen area to your clipboard.
2. Paste (Ctrl + V) into an image editor (The Gimp, Photoshop, MS Paint, etc).
3. Edit if needed.
4. Save as .gif or .jpg (check quality first if GIF format).

For the usual game view capture:
1. Hit ALT + PRINT SCREEN, copying only the focussed application/window to your clipboard (ie: the browser window you are playing the game in).
2. Paste (Ctrl + V) into an image editor (The Gimp, Photoshop, MS Paint, etc).
3. Edit as needed (like cropping to the City view portion of the page only).
4. Save as .gif or .jpg (check quality first if GIF format).