I spent most of my Christmas Eve printing, framing, and wrapping Christmas gifts. This was my Christmas present to myself – an X-Rite colormunki. This little ball of awesome is a monitor calibration device. It makes sure all my monitors are calibrated to their peak color reproduction performance. Now all my images look consistent across multiple display and print environments. Now what I see on the screen, is exactly what prints on paper. After you calibrate your monitor, the calibrator stays connected to your computer and measures ambient light in your room and changes the display settings automatically depending on your lighting environment.
I really have no idea why I let myself go so long without buying one of these, I highly recommend any monitor calibration system to all digital photographers.