Add real package management to Mac OS-X.

macports doesn't cut it, neither does brew. yum or apt-get based would be the way to go. Plainly put, the distance to perfect desktop (A decent package manger for the Unixy bits) is closer in Mac OS-X than it is on Linux (Adding a, usable, consistent desktop with usable office apps)

Get into experimental aviation. Being able to show up in a plane you've built yourself is the best resume you could have.