100 Amazing Mage Tricks!

So, I was browsing the warlock thread of informative posts and I came across the "100 Incredible Warlock Tricks" thread. This thread was extremely productive and was interesting to read. A lot of short and sweet ways to optimize game play.

Let's make our own!

The idea is to post some of your own knowledge in this thread of the mage class. You, of 2 months played, may know something they of 2 years played have never known and vice versa. Feel free to post anything that you know, small or big, anything!

I'll get the ball rolling:

Using Frost Nova Rank 1 over Frost Nova Rank 5 ( or whatever rank corresponds to your level) will save you a cushtie 126 mana and still have exactly the same effect!

Your turn!