Steve, I think this is your body telling you it misses its old friend. When I was trying to stop smoking pot I had the same kinds of cravings. Always right after work I would come home and light up, but after I decided to quit I would come home and get a mad craving I had to fight off. I found that occupying myself with something else took the desire away until eventually it stopped. I hope something similar works for you. It sounds like you're already well on the way to putting those cravings down. Good luck!