Originally Posted by
PHXflier
To reduce the number of "smallies" and convert them to single credits of higher value, you can book one-way fares using three of the credits, then cancel, and then you have combined three credits into one. Do that a couple of times, and your zoo of small credits can be consolidated into a smaller number of larger credits with very little investment needed if you play it smart.
You can also roll many credits together by making a series of changes to slightly higher fares until they're all consumed.