Bonus post: Check your AH.

The inscription guide promised us by Boubouille has now been posted on MMO-Champion. I'm not going to recap it here, nor am I going to advice you to use it. I will however tell you to abuse the opportunity. How you ask? It's very simple.

With easy access to a "get rich NOW" guide so readily availible at a website visited by tons of people every day, a lot of wannabe's are going to attempt to earn gold by following it. They'll start buying herbs, books of glyph mastery, inks and whatever else they need to earn "milloins of goldz lol". This means that they'll probably empty the auction house of those items, and drive prices up on all of them due to the large demand.

The first thing you should do, is check the prices of various herbs (Lichbloom, Icethorn, Adder's Tongue), and see if they've increased since the last time you looked. If they have, and you've stockpiled some herbs, sell them now. Same goes for various inks and books of glyph masteries.
The newcomers will most likely buy tons of herbs and inks to try the new glyph market out, and crash it totally because there will be so many new competitors, while you sit there with a fat wad of cash, laughing.

In a few days/weeks (depending on server) the demand will fall, as most of the newcomers will most likely give up due to a lot of competition, and the realization that all they've done is waste a lot of gold, so take action now.