I´m surprised to see so many people staying loyal to the original track order.
For me the shuffle function is one of those inventions like the remote control;
"How did we get by without it?" Sure, there are concept albums, albums that flow from track to track or have obvious openers and closers, but I find that most albums sound just as good played out of order.
For me, "shuffle" enhances the listening life of an album by making the experience a little different each time. In fact, "shuffle" is so much my go-to option that with plenty of albums I don´t know what the actual track order is. The other day I found myself playing
In A Silent Way on shuffle, and that´s a two-track album.
Spoiler for brian eno on an album´s running order::
We spent a lot of time listening to the tracks on this album in different sequences...trying to find a good sequence in which to present it. This is a traditional issue in record-making - because a song can flatter or kill the one following it. It was easier in the days of vinyl, because you were dealing with two distinct suites of music - Side 1 and Side 2 - and it was relatively easy to divide the material into two groups of say 5 or 7 songs. But when CDs came along, you suddenly had a continuous stream of up to 80 minutes of music to deal with.
To give you an idea of the dimensions of this problem: I was working with a band once on an album of 15 tracks, and we were starting to wonder about how to sequence them. Someone in the band said "Couldn't we just listen to all the alternatives?". I decided to work out how long this would take. The number of sequences is 15x14x13x12x11x10x9x8x7x6x5x4x3x2x1.... which comes to a magnificent 1,307,674,368,000 - or approximately 1.3 trillion possible sequences. If each of these sequences takes an hour to hear, that amounts to about 150 million years of continuous listening. If you'd like to sleep and have a social life, you should multiply that by 3, which would take it up to 450 million years - so you'd need to have started listening around the middle of the Paleozoic Era, surrounded by puzzled very early life forms, to have met the deadline of early July, 2011 in the Holocene Era.
Clearly, for us mortals, going through all the alternatives isn't an option. So Rick and I, both unfortunately mortal, listened on 'random shuffle' - just let the CD player throw the tracks out in any order, and paid attention to combinations which made sense (or sounded dreadful). That's how we built up the running order, but there was one fly in the ointment: BREATH OF CROWS. Whatever we seemed to do, that one didn't seem to sit comfortably. It really wanted to be all alone, separated from everything else. That's why we put the one minute silence in...so that, for those listening to the album as a continuous experience, there'd be a hiatus before it started. ( It isn't a silence actually - I put some white noise, fake tape hiss, in there...to make a psychological cue that something was still happening.)
My suggestion is to occasionally listen to the album on random shuffle. It produces some nice surprises, like suddenly noticing a track you hadn't really noticed before.