Move Windows one pixel at the time using the keyboard?

Hold down the Ctrl key while pressing the arrows for single-pixel control. You can press and release during the move (or resize) as needed to switch between jumping and single pixel.

Thanks a lot, great answer, though more specifically, for English language Windows 7 shell layout on Window's windows that are NOT "Maximized"/"in full screen mode": ALT+SPACE->M->CTRL+ARROW KEYS->ENTER

Example: to move a window some pixels to the right: Press ALT and SPACE together. Press M. Press CTRL and → the number of pixels you want to move. Press ENTER to lock the window.

Tip: press ESC instead of ENTER if you want to reset the window you're moving.