I live in an apartment that has a regular outlet in the garage that I could use to charge my Model 3. My only dilemma is that the outlet is on the ceiling so I will be needing an extension cord. I DON'T plan to leave the cord hanging. I will be securing it to the wall. I should only need around 15 - 20 ft so nothing crazy long which should work in my favor, as charging with an extension cord isn't the best option. The good thing is that I don't use the vehicle often/don't have a long commute so I only charge once every 2 weeks from around 10 - 20% to 80 - 90%. Seems like a 20 ft 10/3 is my best bet but I know nothing about this stuff (besides what I've read). Can someone just confirm?