Physically drained.

I didn't realize it until I got out of the car after coming back from work... but my body sure felt heavier than normal once I did. I guess mostly being on my feet for pretty much the entirety of the day really took it out of me. It is a good feeling. Not just physically but emotionally, as well. Knowing work was the source give a decent sense of accomplishment. One of the very lucky side-benefits of my job that I don't usually give much credit to, I suppose.