Caffeine, Alcohol (craft beer drinker) and Nicotine.
Other periods of my life have featured near daily use of cannabis and opiates. However I decided to cut that back years ago (more so the opiates). The legal ones have me hooked though. Thing is I really enjoy both Coffee and Beer (not a beer snob, but I try to drink good when I have the money). Of course, Nicotine compliments both quite well and it morphs into a dual addiction.
Many members of our society are hooked the same way I am... kinda funny to think back when I used to say "I will only use weed, alcohol and nicotine are disgusting". (Damn that was over 10 years ago, I have been around the block and back a few times)