Not Cleaning out the Charging Port
While you don’t want to use harsh cleaners or chemicals on your device, there’s a good argument to be made that you should still clean it regularly. In fact, there’s one particular area on your device that you may never have cleaned: the charging port.
If you carry your phone in a bag or pocket, there’s a good chance that there’s lint in the charging port — which can interfere with charging, accessories or wired data transfer. So try cleaning out the port every once in a while. Just make sure you turn off your device beforehand and use a specialized tool or plastic toothpick (instead of anything metal).