2 cups coffe from early to around 0900
tea after that.
coffe bossts me a bit out of sleep and tea keep me concentrated and awake. I find coffe after 0900 a distraction enhancer ( my mind tend to get distracted)
I get about 1/6 of my yearly salary, a year, doing software job as an consultant for my ex work place. They did not replace me when I abruptly quit in 2017, giving them 3 months of notice. They have been a steady source of income since. I adjust my price yearly adding inflation + 2%