Originally Posted by alex0683de
I've tried a search with no success (just try searching for the word "DO"!), and I didn't find anything in this forum, which I would consider to be a logical place for a Sticky explaining the concept.
There is a “sticky” thread in this forum where you would have easily found the answer to your question,
alex0683de, as well as other interesting information about the FlyerTalk community in general:
The Definitive CommunityBuzz! Forum Thread Directory
Most of the information is a click away once you read the first milepost of that “sticky” thread.