I used to smoke just for the nicotine benefits. Then I realized that I stunk more than I thought so I quit that and picked up dip (smokeless tobacco). It provided a much more prolonged nicotine "buzz" and I could use it at my desk. The spit was gross but as long as no one was around, I could do it as often as needed and keep focused on my work. After a few months of doing it regularly, I noticed my front, lower gums were beginning to recede. I dropped that and went back to smoking every now and then but still hated the stink on my clothes, hands, face, etc. I bought a cheap ecig pen and liked the slight buzz I could get from the nicotine. After a few years, I've stepped up to larger devices to get a larger buzz. It's not the same as cigarettes or dip but I can use it with no mess or strong smell at my home desk.

A few years ago, I got a diagnosis of ADHD and medication was a recommendation. Generic amphetamine salts are what I use now, both an extended (20mg) and quick release dose (10mg). They made more of a difference in my focus than I ever thought. Only problem is that my mind turns into a bullet, I do whatever work I start on with little to no distraction but I can easy end up wasting time if I get sidetracked right as the medication kicks in. Nicotine still has its place for me, I use it everyday to keep awake and alert for my work. Medication is strictly for days where I know I have don't have time for distractions.

Coffee has a milder effect than the medication but it's a nice, quick boost in concentration and alertness that can get me through a class or meeting. I usually avoid drinking it on days I take medication as I tend to feel a very strained feeling, it's very unpleasant sensation and I become hyperactive and careless with my work. Nicotine and coffee have a complementary feel, they have different effects but they fit nicely together.

I think stimulants are my favorite thing ever. I wouldn't be anywhere close to where I am now in my career without their help. Most of my weaknesses come from procrastination now instead of both procrastination and being easily distracted. I'm getting better at starting things on time now and with the boost of focus, I don't take as long getting my work done than in the past.