Hi I would like to know more about trading options spreads. First what is the advantage of spread trading options versus just putting on an outright option? Is it just to reduce the premium costs? I hear guys talking about butterflies, condors, ratio and bull call spreads what exactly are these kinds of spreads and what are you trying to accomplish by putting these on? Also aren't these kinds of spreads extremely commission expensive? Wouldn't you be better with just an outright option or future? I trade the grains and energies. What are the most common option spreads for these futures? If anyone could help me out with these questions it would be greatly appreciated.