My EDC kit lives in my handbag, so I always have cash, sunglasses, reading glasses, and spare phone charger and battery. I'm usually carrying a 1 L Nalgene with a human gear capcap, filled with iced tea.

I don't have spare keys. I don't wear regular eyeglasses or contacts.

My EDC kit does include a Fisher Bullet Space Pen, 500 mg acetaminophen tabs, 200 mg ibuprofen tabs (take 500 mg acetaminophen and 200 mg ibuprofen together), 25 mg diphenhydramine tabs.

And I always keep a compact umbrella in my handbag, which makes a good parasol on sunny days, since I like sleeveless dresses but hate sunscreen.