Me too.
I need a small cup at supper to feel right. Do you have any caffeine near that time?
No, if I drink coffee after 4 pm I have trouble falling asleep.
I raise my caffeine level in the morning (2-3 big mugs) and usually 1-2 in the afternoon, after lunchtime typically. That's enough to stay focus all day in my case. No coffee in the morning and I'm useless ... :blackeye
I'll try to limit myself to 1 on working days in the near future ...