Some remarks from someone who has been mastering images for all kinds of prints for more than twenty years:
- The proof is in the final medium, not the editing station
- The Saal settings are a solid starting point for someone without access to proper calibration tools
- Graphic cards in laptops are notoriously bad to calibrate, try to avoid that
- External screens on laptops should be adjusted on the screen, not through the graphics card
- Softproof is more or less a futile effort in matching two completely different media
- Invest in a good daylight lamp on your desk, anything from 4000 to 5500K is fine
Personally I haven’t calibrated via graphics card for a long time, and on laptops even longer. Most modern screens are way better than the expensive hardware calibrated ones of the old’en days.
I also can not remember any time when I actively used softproof on a screen, ever. The proof is in the print, wether that is from an inkjet, a lab or a book. So print. Compare. Print again. Compare. Learn how your screen treats colors, where the problems are. This part can not be stressed enough, you are the secret to good looking pictures that you like.
Even in a fully calibrated environment with a hardware calibrated screen and softproof printer running a proper RIP software noone is going to trust a screen and only to a certain extent the printed softproof.
And one more advice: just like any sound engineer has a CD or USB stick with a number of songs they know by heart you should collect a set of test images that you look at on every screen, print on the weirdest devices and get to know so well that after some time a glance at them will tell you exactly the problems any media has. Especially great with all the screens floating around.
All in all, color management is overrated. Experience is much more important.
If the final image/print looks great, everything is fine. 