Drink both tea and coffee, both very strong and no cream/sugar.
Occasionally we use tea bags but prefer loose-leaf. If teabags, in order of preference: Irish Breakfast, English Breakfast, Vanilla Black.
Loose-leaf: we do a blend of Russian Caravan and Lapsang Souchong, in a ratio of 1:2. There's a couple of restaurants that offer very high quality loose-leaf white teas; then I indulge in Bai Mu Dan, White Peony.