The joystick rubber on my controller was starting to wear out, so I ordered these thumbstick caps with covers. I highly recommend that everyone gets at least joystick caps with covers—they're inexpensive, protect the sticks from wear, improve grip, and make the controller feel much better in hand.
My laptop had been overheating for a long time. After getting it back from the service center, I decided to replace the thermal paste because Dell's stock paste isn't the best. My laptop originally used liquid metal, but the service center replaced it with regular thermal paste, which had already become dry and crusty. Instead of going back to liquid metal due to the risks, I used Thermal Grizzly Kryonaut. The result was a 10–12°C drop in temperatures, and it's running great now.