It's always nice to see other folk's workspaces!
Looks like everyone's got it going on!
Coincidentally, I had just taken some pix of my "hobby area" a few days ago, since it was in a rare state of cleanliness.
Here's a coupla pix:
When it's building time, I toss a cutting matt on the desk, and go to town. All my paints and hobby supplies are in tacklebox-like plastic containers that are stored under the desk until needed. I also have a fold-out table that's exactly the same height as this desk, which acts as an extension for larger projects. The set of drawers under the left side of the desk is on wheels, so it can also slide out and act as somewhat of an extension.
I'll definitely be using all those extensions when the big 1/16 T-34, Tiger I, and Tiger II kits get the call to come down from their shelves in the closet!