For the first time in years I can say this, I smoke one blunt a night with a designated amount of weed and only partake in caffeine during the day, other then my 10mg of methadone in the morning. There was once a time where the list would have had to include heroin and probably included crack among other things. I also use to smoke about 3 blunts after work 6pm, 9pm, 12am.
Now its literally one blunt at 930/10pm and roughly 400-600mg of caffeine a day with 0 cigs for 4 weeks. I am approaching a fabled 0 substance day maybe in the next year. Got my caffeine dose from 1200-1400mg a day down to a normal persons amount. Yay for responsible and moderated usage of all substances regardless of their society views!