Simplest answer is, when you are ready to export your track, do this:
 

• Edit -> Select None
• File -> Export -> Aidio
• In the Export Audio dialog, select the "What You Hear" preset. This will export exactly what you hear when you press play.

 
That's it. From there you can make it as complicated as you want.
 
Dan
 

bitflipper
Ditto for Dan, another knowledgeable fellow and only occasionally a bit of a smart-ass.

Only occasionally? I'm hurt...
 
Dan

dcumpian
Ditto for Dan, another knowledgeable fellow and only occasionally a bit of a smart-ass.

This man is a saint.  Always helpful in my book Dan  

bitflipper
 Also sorry about the rambling stream-of-consciousness brain-dump.  

If that's a rambling stream-of-consciousness brain-dump, you must have an extremely clear and organised brain!
 
Great post.
 
AMB

I learned from this post to set my Master bus to 0 and route all tracks and buses to it.  However, in doing that, I discovered many tracks (mostly midi instrument tracks) have volume too high.  It wouldn't be hard to just bring the sliders down for those tracks, but some have volume automations.  Some of the volume automations are fairly complex and I find editing them to be rather tedious.  What's the best easy way to do an across the board volume reduction for these tracks?  I tried adjusting the gain knobs down a few dbs, which was easy, but it seemed like it was affecting velocity and therefore tone and dynamics of the tracks.  If it's an instrument track, I can open the VST and adjust down the instrument volume easy enough, but not my favorite solution.  Any ideas?

craigr68
 It wouldn't be hard to just bring the sliders down for those tracks, but some have volume automations.  Some of the volume automations are fairly complex and I find editing them to be rather tedious.  What's the best easy way to do an across the board volume reduction for these tracks?

Offset mode http://www.cakewalk.com/Documentation?product=SONAR&language=3&help=Automation.13.html
If that is too confusing add an empty FX chain to the bottom of FX rack or PC which ever is last in the signal chain and adjust one of the FX Chain faders.
 

craigr68
I learned from this post to set my Master bus to 0 and route all tracks and buses to it.  However, in doing that, I discovered many tracks (mostly midi instrument tracks) have volume too high.  It wouldn't be hard to just bring the sliders down for those tracks, but some have volume automations.  Some of the volume automations are fairly complex and I find editing them to be rather tedious.  What's the best easy way to do an across the board volume reduction for these tracks?  I tried adjusting the gain knobs down a few dbs, which was easy, but it seemed like it was affecting velocity and therefore tone and dynamics of the tracks.  If it's an instrument track, I can open the VST and adjust down the instrument volume easy enough, but not my favorite solution.  Any ideas?

Many midi instruments have varying volume levels, even from patch to patch, so this is fairly common. It is one of the reasons I like to bounce midi tracks to audio and mix pure audio. That's just me, others will tell you different.
 
Anyway, back to your question, if you've already automated volume levels, you can change overall level in one of two ways:
 
1) select the entire volume envelope and drag it up or down.
2) Enable offset mode, change the volume to where you want it to be, then disable offset mode.
 
Someone correct me of offset doesn't affect midi tracks, but I think it does...
 
Dan
 

Easiest way by far is to use the one tool dedicated to this task:
 
OFFSET MODE.
 
Click this button to engage it:
 

 
All of your track faders will jump to 0dB. This is nothing to worry about.
 
Select the track or tracks you want to apply the OFFSET to and reduce the track fader accordingly.
 
You can play the project and decide if you've gone too far, not enough or just right.
If you want to change what you've done, just alter the fader volume again whilst still in Offset Mode.
 
When you've done, be sure to disable Offset Mode by clicking the button again.
If you don't, any further changes you make could potentially screw up your entire mix.
 
Offset Mode not only applies to volume - you'll notice a little + sign next to or above every control you can apply this technique to.

Steve & Dan beat me to it

Thanks for the great answers and explanations.  Both methods are working well for me.