I have 4x6 cards that I write the postgresql way of doing what I use to do with MySQL so that I can easily reference them when I need to.
Should I sit down and read a book and go through the exercises? Yes. But I need to get stuff done now, and the cheat sheets I make for myself let me do just that.
I am not a DBA - I am not even a web developer. I do both because I can't afford to hire them, and when I have used stuff created by them, very frequently their code is clearly crap and insecure and even I can see that, so unless I really want to pay the big bucks, it's better for me to do it myself and cheat sheets really help.
Could you share them ? Maybe put them up on the Postgres wiki.