I am getting into trading options and researching the different kinds of option trades. How do you find good trades? Do you use a scanning software of some kind? Do you have a couple of option trades that you specialize in and then look for stocks with options that meet certain criteria? Further, what kind of option trade would you consider your "bread and butter" and how do you find such trades amongst all the options out there? Is it necessary to have expensive option software etc...?