At home; Unsweetened Grapefruit Juice with a splash of unsweetened Cranberry Juice. Followed by Coffee.

At a hotel; Grapefruit (primary), or Orange if grapefruit not available. Followed by Coffee.

In the air; Strangely, V8 or Tomato Juice, followed by Coffee.

In the car; Coffee

On the train; whatever I have with me, usually coffee

On the motorbike; fresh air