actually it's a good idea buy 100 BTC and start gambling, martingale from 0.00001 BTC impossible to loose
sorry to break it to you, but you have no clue.
http://coinbits.com/2013/01/05/how-to-bet-efficiently-on-satoshidice-and-why-you-shouldnt-use-the-martingale-method/
http://i.imgur.com/rL61Fze.png
