Are Outlines…Out of Line?

Do you outline before you write stories?  If you're not a fiction writer, do you outline in preparation for any substantial non-fiction you write?  I do, but this won't be an attempt to persuade you to outline, but rather a description of why and how I do it.  Perhaps you'll benefit from knowing such things.I'm sure many writers don't use outlines.  Too much of a bother, they'd say.  Too confining, others believe.  Still others would profess that time spent outlining is time not spent...