I realize this isn't a "Pro Tip" per say, but if you're on the west coast this month there is a really great event being held by SensioLabs.
Even if you aren't a Symfony developer there will be plenty for everyone.
Just to highlight a few speakers:
Taylor Otwell - Laravel 4
Michael Dowling - Guzzle, PHP HTTP client and webservice framework
and a bunch more!
You can check it out here:
Hope some of you guys can make it, I've heard it's one of the biggest PHP events of the year.
I'm not affiliated with SensioLabs or any of the developers mentioned above.
Just a fellow developer spreading the news.