Refreshing homemade summer drinks for working outside

It's finally summer - gardening season is in full swing here, which finds me spending WAY too much time in the heat and sun, coming in craving a cold, refreshing drink before heading back out. (Especially since my AC situation is somewhat lacking).

I've rediscovered home made ginger ale. Somehow mildly sweet, yeasty, bubbly ginger water hits the spot when I'm dehydrated.

(Ginger Ale - Combine approx 3.75L of water, a tiny pinch of yeast, 1-2 cups sugar, a small glug of molasses, and a finger of minced ginger in a soft 4L water bottle. Screw the top on, leave it in a moderately warm place, refrigerate after the bottle is hard, in 6-48 hrs, to keep it from exploding. Avoid glass. At the lower sugar level, this is pretty close to a commercial sports drink, and only mildly alcoholic if you stop the fermentation once bubbly. To serve - pour in glasses over a strainer if you dislike chewing ginger pieces).  

What do you make to drink while working outside in the summer?

Good idea! I sometimes get bored with plain old water and don't chug as much as I need when working outside.

I go through the tea collection and pull out all the odd varieties, esp. herbal, that didn't work out. Soaking them for half a day in a pitcher adds just a little bit of flavour and clears out the cupboard at the same time.

I keep wanting to make 'switchel' (https://www.almanac.com/switchel-recipe-haymakers-punch). I've done pickle juice, and not always watered down. I like coconut water, but it's usually pretty pricey. So, mostly, I make lemon water with sliced (organic, of course) lemons, a bit of stevia, and some Himalayan salt, in our unfiltered, artesian well water. Sometimes, I'll add fresh mint, basil, other citrus, blueberries, ginger, melon, or cucumber.