This entry is written as part of the Best of the Month Blog Carnival, over at Not So Secret Society. If you haven't perused the writings over there, I highly suggest you do.
Many players are looking for ways to exploit the basic tenet of a supply and demand economy. While performing my evening routine, I came across a lightbulb moment. After being caught up in my routine, I realized it was 12:04 am, therefore my Transmute CD was fresh and ready on my Alchemist. I immediately logged onto him, only to discover I was three volatile water's short of the needed mats. Dutifully, I marched down to the AH to buy some.
The AH was crowded, especially for the lateness of the hour, but I thought nothing of it. I entered my search into and found a handfull of the volatiles at 12g a pop. I tried buying out the first, but the auction was gone already, same with the second and third. I quickly realized there were many others just like me grabbing their transmute mats now at midnight. That got my half ass mind working. Immediately, I went to my snatch list and grabbed all volatile waters under 15g. Which turned out to be 65 waters. I reposted the waters in stacks of 10 for 200g a pop, or 20g a stack. I pocketed the remaining volatiles for my own transmutations. Sure enough, before I even had to time to finish my transmute, my screen was blinking with "A buyer has been found for your Volatile Water". Six times. I had almost immediately sold out. This confirms my idea, that buying low and selling at normal at the right time will yield immediate positive results.