I drink Regular Coffee. Decaffeinated in any form, whether ground or instant, has an aroma and taste that I don't like. Mostly the aroma. It even stands out when you put flavored creamers into it.
I'm like Paul. Sip fresh out of the pot. Take-out coffee can be consumed the same way if you take the sippy-cup lid off. Seems you can't pull enough air with the coffee to cool it if you have to drink it through that little hole in the lid.
I also drink coffee all day long. It's my drink of choice. Well, not really, but it's more affordable and acceptable in the quantities I consume.
Headaches that Raydar mentioned. An experience I had. I worked in printing most of my life with vapors of the inks, keytones, xylols, acetones, mineral spirits, and various vinyl thinners being a big part of my day. We always had a couple of pots of coffee going and I seldom let the cup on my desk go dry for very long.
On the weekends, I got bad headaches, but on Monday they soon went away. I chalked it up to a kind of withdrawal from all the vapors. While talking with a neighbor, she said she had the same experience, except that she owned a daycare. Headaches on the weekend that would go away on Monday.
She consulted a doctor, maybe a specialist, but the Doc asked her about her routine. It was something like go to work, put on a pot of coffee, get ready for the kids, work and drink coffee all day then go home. Weekends consisted of working in her yard or fishing with her girlfriend.
My activities were somewhat similar with opening the shop and planning the production day while sipping on the coffee. Weekends were outside home activities like practicing or racing motorcycles, fishing with the wife, doing yard work or other activities.
Her Doc suggested that it was caffeine withdrawal and told her to have a couple of cups on Saturday and Sunday morning before going about other activities. It worked and the headaches went away. I tried it, having a cup in the morning and another at night and my headaches went away.
I can take a cup to bed, drink it and sleep all night long. It seems that the body becomes tolerant and maybe even addicted to the caffeine.