PS: One great option is to get US gov bonds that get ~2% over inflation for 10+ years which makes them really safe. (https://www.bernstein.com/public/story.aspx?cid=466&nid=...) Ok, you are still taking a currency risk if your living outside the US but that's fairly safe.
Edit: Think of the first 1 million as 40k inflation adjusted every year for the rest of your life and only take risks when you need to until you have more money to live off of than you need. Risk is something you don't want and buying a house is risk.