Easy and cool front end interactions.
I use Mailchimp to send emails like newsletters and things like that.
I use sublime text 2 to code all my web apps and stuff.
I use Github to manage my code, versioning it and so.
Laravel is my favorite framwork to make PHP stuff in these days, easy to use, a lot of documentation about it, just pretty cool.
I use heroku to deploy my web apps in seconds.
I use this to track the app performance.
Mandrill helps me to send emails to clients fastly, also is trackable, that's cool.
I use gulp to do repetitive tasks and optimize css and js.
I use npm to fond great tools to create code and deploy it fastly and cool.