I do that from time to time. I usually will spend a little more time focusing on the tasks of the day, spending a bit more time focusing on spiritual things, doing a bit of reading. I'll go into work very early and have some time before the day washes over me. Even when I don't come in early, if I can spend that time initially getting my arms around the day and centering on getting into a good frame of mind, I'm more efficient.
RTR,
Tim