So I have seen several posts to this question but still haven't quite found the answer I am looking for. I will accept delivery of my Model S in 2 weeks and I currently don't have any charging options at my home. I am currently renting a house that has a detachable car port with no plugs outside. However I do have a an old dryer outlet inside the house about 40ft away. I've confirmed with the plug and adapter that I will need the NEMA 10-30 Adapter. I've read several people have been able to use an extension cord successfully to charge on a NEMA 10-30 Outlet. Which extension Cord will I need and is it safe? Also would I just plus in my Tesla Charger into the extension cord to charge? What would be the recommended time of charge and amps used for a safe charge? Now I wouldn't do this every day as I drive be Fremont everyday to work so I can always SC. Just would use this to charge at home on days I don't want to leave 20-45mins earlier for work. Thank you advance for your help as I am still learning on how to successfully charge a car. It seems more difficult then it should but thats only because my current home is making it that way.