HavanaJoe,
I noticed that you're NW of Philly - where about? I think it's time for a Northeast Herf - how about you?
Anyway - Headaches - I'll get them in the afternoon & be a zombie by 3:30 if I have not had any coffee (at all) - I drink one big one in the morning, and one cup late afternoon - sometimes in the evening on weekends. It can be a slippery slope. That's all I'm saying.
Same thing with smoking - If you smoke too much, you get a habit & can potentially spend too much of your roll on smokes, etc.
I don't drink, so I smoke my cigars & drink my coffee... I'm not complaining, just accepting that these types of activities have their cons - for me, they are outweighed by the pros.
No- a 'cup of joe' in the afternoon will not likely lead to sleepless nights.
But nicotine and caffine are two of the more potent & habit forming drugs in the world. To deny that is to deny common sense.
ps- Good point: Gale - Starbucks is WAY strong! & Eodcole - plenty of water does help!