Nothing sucks worse than involuntarily dragging-ass when you need to be productive.
Cold showers in the AM, supplemental B12 and L-carnitine, and waiting at least 90 minutes to drink coffee in the morning helps me considerably.
By waiting to drink the coffee, you let your body's adenosine stores build up before you block the receptors with caffeine and you won't get the added effect of crashing later in the afternoon. A caffeine crash on top of GH lethargy is enough to drop a horse.
For the cold shower, you can enjoy a nice warm shower, then, when you're finished, slowly feather off the heat until it's as cold as you can get it. Control your breathing and stay in it as long as possible. This practice "energizes" my whole day and has dramatically improved my overall mood better than anything, in my anecdotal experience.