1. Water- in all shapes, forms and uses. We need for hydration to survive, we need it in cooking, the pretty blue water of tropical beaches, the boiling and sometimes acidic water in the stunning thermal features in places like Yellowstone, ice...something that was once a luxury, rain to help with all of the flora and fauna, drinks that require water in the process (coffee and tea came to mine first), the portability of it for inside enjoyment like aquariums, the use of it in things like pools and waterslides on a hot day, water for cleanliness like a nice hot shower or relaxing bath, and even just to splash your face and neck on a hot day.
2. Rum- I'm a rum girl. Give me a fruity, coconutty drink with some spiced or dark rum and I'm a happy girl.
3. Automotive fluids- Everything from gas and oil, to coolant and windshield wiper fluid. You don't realize how important it all is until you have none. The VW Atlas that I bought in March of 2020 and had repurchased as lemon in April of 2021 had an unfixable A/C leak. I'll spare you the novel, but it was a dreadfully hot situation and I spent a lot of time in loaners.