With over 13 million accounts, Robinhood.com has successfully become the trading platform of choice for both those new to trading as well as for many seasoned traders. Trading has become a "fun" and profitable hobby for many people who haven't done it before, and Robinhood has become the online broker of choice for the novice and small account trader. Trading "credit" and "debit" option spreads are perfect for newbie traders and those with limited...