ALWAYS!!!!! I have never been one to "stumble" in and out of the woods, to and from my stand...
I prefer to wait untill it gets light enough to see where I'm walking, then stillhunt my way into my stand making as little noise as possible. The same thing with walking out... As soon as the sun dips over the horizon, I stillhunt my way out.
Many times, I have encountered deer going to and from my stands and most times, they are unaware of me being there. I take almost all of my vacation during deer season, but I normaly work 12am - 8am. By the time I get out of work, it's already light... But if the weather's good, I head for the woods. I shot my biggest buck at 11am, and most of the others between 10am - 2pm.