Answer to "Whats the best way to clean and maintain the USB-C port?"I just cleaned a Macbook Pro USB-C ports. They had coffee spilled over them and no one noticed so it dried up into a sticky gunk. I used a sewing needle, cotton, alcohol and compressed air. Dissolved the gunk with the alcohol, collected it with the cotton by dragging it around with the needle and finally dried it with the compressed air. Worked like a charm. Both ports back in business.