Open an Explorer Window from CMD on Win7

You can use explorer or start

Show the number of lines added and removed by an author in Git

Disable screen orientation hotkeys on Windows 8 on Dell XPS 12

AltGR + Arrow keys rotate the screen, to turn this off do a CTL + ALT + F12. This will bring up the 'Intel HD Graphics Control Panel', goto 'Options' and disable 'Hot Keys'.

Solving the Airplay problem

Remove "Move to Dropbox" as option from two-finger click menu on Mac

Spotify Puzzle #1 - Reversed Binary Numbers

I love the product and found few programming puzzle while I was browsing on their site.
This one is really simple, takes few minutes.

The Great Engineer

The things that separate a great engineer from a merely adequate one are passions and goals, character and personality, not specific technical skills.

It's not that skill doesn't matter; it's that skill is only one aspect of a great engineer, and it's the aspect that's easiest to change. Smart peoples' skills improve steadily with use. Personalities are much less mutable.