Need advice on mixing down to single stereo track...

I wonder if anyone can point me to any link etc regarding techniques for mixing down a sequence into a single stereo track.
I have about 10 tracks of instruments (no drums or vocals) in the sequence and they are all finalised however, apart from bouncing the sequence down to one stereo track I wonder if there is a better way of doing it perhaps by using busses or some other method ?
Simply bouncing all the sequence to one track just doesn't seem adequate but I'm not aware of any other method ....I wonder how the professionals go about it ? I would be very grateful for any advise ..

Thanks for your help.

The sequence is finished, it's instrumental with no vocals or drums nor anything to add.

So as you say "you may want to export it as a stereo mix" ...I have been bouncing down to one track then exporting ....should I simply export to stereo mix without the need to bounce down ?
Also, what is the best type of file to export too?
Lastly I have been reading up about mastering ...is it the case that the mastering engineer works with the single stereo track and not the whole sequence mix ?
Grateful for any tips ...

I tend to work on my tracks from the very beginning, with the end in mind.
 
You must have some sort of idea what you want the finished song to sound like or you will be spinning your wheels for a long time.  I'm not saying things can't change or evolve as you work, because they can and  do, but you need a goal of some sort.
 
In other words.... as you are working on recording the tracks and getting the project together, as soon as you can reasonably do so,  start using the volume envelopes, EQ and other fx in the tracks.  You want to work towards having the project sound like you want it to sound when it's finished. 
 
I tend to start with bass, drums, and rhythm of some sort..... then I build from there in the recording process.
 
As you work, it should  be sounding more and more like the song in your mind sounds. At the end...when you rewind it to the beginning and press play and listen, it should be complete and exactly like you want it to be. At that point, all you should need to do is export it as a finished wave completely mixed. I use the WHAT YOU HEAR preset for export. Not all the Sonar DAW's have that preset as I understand it.... so if yours doesn't, find one that does export the tracks to a stereo wave that sounds exactly like the playback. Yeah, whether it's called mix, export or bounce.... the main thing is that it sounds like the playback.

Many thanks for advice and tips , I've got some helpful stuff already and am ready to do things differently.

I'm beginning to realise how little I know about final mixes and mastering but I guess it will all become clearer with practice like everything else.