Buy it off friends. I got a script off the internet and they sent me 90 xanax bars for $115 and I didn't have to pay for it until it was delivered. Xanax is easy to find, and it's easy to get prescribed.
That was a couple of years ago. Since then, there has been a crackdown on online pharmacies and it's hard to find places where you can get actual scripts from online doctors anymore. They're still out there, but I haven't taken the time to find them since then. The last place I ordered from shipped through a port in Miami, and my order was seized twice.