Currently Being ModeratedJul 4, 2013 12:49 PM (in response to christopher rigby1)
Nevermind. I found the answer myself. It's very easy.
1. Create a new playlist called e.g. "Interesting shuffle".
2. Go back to the playlist with the interesting shuffle, select as many of the shuffled tracks as you want to keep in that particular sequence, and drag/drop them to the new playlist. Make sure "shuffle" is OFF in the new playlist.
Now, even though iTunes will reshuffle the original playlist next time you play anything, you still have the "interesting sequence" in the new playlist and can keep/play it as long as you want.