I'm getting used to the vile drink I'm forcing down for the sake of the heat, replacing fluids and minerals efficiently, etc.
Isotonic saline solution, that is, home-brewed Gatorade. Sort of. Juice (pineapple or grapefruit), vitamins, water, and salt, one teaspoon per litre of fluid.
At summery room temperature, it has a satisfying viscosity that reminds me of blood. I feel like a happy vampire drinking blood. It is icky, but is also very good in a slightly sick sort of way.