If you're a web developer who uses MAMP in conjunction with anything other than PHP,
I'm sure you've had quite a large bit of frustration involving multiple MyQL instances.

Not any more! This simple chain of commands will save you days upon days of troubles:

$ sudo rm /tmp/mysql.sock$ sudo ln -s /Applications/MAMP/tmp/mysql/mysql.sock /tmp/mysql.sock

I only wish I had found this sooner.

Enjoy.