Comic artists and writers, what's your process for planning pages?

I'm sure there are multiple comic artists and writers on Tildes, so let's talk process for designing and planning pages! Hopefully this fits here, but if not feel free to move it.

I've only drawn a few comics myself, and I like to make a script first for longer projects. It can be detailed and break it down by panels, or just give an overall summary of the page. For shorter comics though where I can clearly envision it (e.g. 4 pages), I like to kind of wing it. Someone else I know likes to go right into roughs, and then figure out what to cut as he goes along.

How about everyone else? What are your preferred methods and steps?