Wheeee! The past few days have shown quite a bit of activity here! Welcome back everyone!!
For my Ahra Pahts shell, I wanted a way to plan out where things would go before I started building them. So I took a screenshot of the empty shell's wireframe in Blender and turned it into a layout grid.
I've certainly found it useful, and I'm pretty sure that others would too.
Hope this is helpful to some people,