Options were on the to-do list that never got done. I've not traded options before so it would be a bit of a time commitment I didn't have to research first. Though I'm guessing the buyers of the options would want a hell of a premium also, so the benefit would be in the leveraging and not the margin.
The parent asked why you weren't /selling/ call options. So if the premiums were high, then you would be making a larger margin. Perhaps you confused it with buying puts?