I’ve had numerous unusual or minimalist wallets and the HyperLite is my favorite. It’s built from DCF (Dyneema Composite Fabric) and nylon so it’s tough and strong but very light. It has just enough pockets for quick access to my important cards and has a full billfold, too.
I've worked on (& built myself) dozens of mechanical keyboards over the years. The Kinesis Advantage is the one I keep coming back to. The cupped shape and vertically-aligned keys are a game changer. After adapting (took a couple weeks), my typing speed increased more than 30%