New tools to my developement

Live Reload X
http://nitoyon.github.io/livereloadx/
This is based on Livereload but having command line interface.
It does auto fetch images/js/css (without reloading)
or auto-reloading (while editing script such as PHP, HTML),
great for doing front-end development.

ZSH
https://github.com/robbyrussell/oh-my-zsh
Alternative to Bash shell. See how awesome it's here:
http://www.slideshare.net/jaguardesignstudio/why-zsh-is-cooler-than-your-shell-16194692

Day-O
http://shauninman.com/archive/2011/10/20/day_o_mac_menu_bar_clock
Although not related to development, this does provides quick calendar, very useful.
Another quick way is using command line, run: $ cal

Arch Linux
http://www.themukt.com/2014/06/07/arch-linux-tutorial/
Always updated, friendly, lightweight and designed for geek.
A great distribution.
Arch's wiki is very well-written.
If only if I knew Arch besides Deiban/Ubuntu, the Linux world will be more open to me.