I don't know what you call it but I like to have a storyboard but I can't storyboard.  I can't draw - even stick men are a challenge.  See:

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Aweful - huh.     Anyway - I like to plan my shots well before shooting but what I do is I build a rough set, position the minifigs, position the camera and take a single still.  I'll then set up the next shot, move the cam, move the figs and take a single still.

I think in the 2d world this equates to something like blocking.  I don't know if this technique has real name.  The downside is of course you need a partial set of some sort which is sometimes not even invented in genuine storyboarding.

I then assemble my stills into a slideshow and type notes all over them.  Sometimes I'll put text in a cartoon speech bubble to outline dialogue, but its mostly for me to understand camera angles and 180 deg rules etc.

I can then distribute to voice actors and they can immediately conjure up an image without having to rely on just a bland screenplay.

Am I the only one that does this?