Brio 740i Countertop Ice Maker
Pebble ice somehow magically makes your drink colder than regular ice. I can't explain it. Also this model is currently at Costco - don't sleep on it!
Fever-Tree Gin(ger beer) and Juice
Ginger beer + juice is the easiest afternoon mocktail for the hottest part of the day. My current favorites are pineapple juice + lime and grapefruit juice + lavender syrup + bitters.
Drinking from an insulated mug all day long
Iced coffee in the morning, seltzer + pebble ice all day, cocktails in the evening. The handle keeps your sweaty hands off the hot metal and makes it easy to double fist when it's your turn to head inside for a round of refills.
Setting up a tiny soak pool in the shade
When you don't have access to a real pool, the hose and a kiddie pool will do