There really is such a thing as a 15-minute project.
More surprisingly, I was able to do one -- Jeff Wisnia take note! Turds not even varnished, much less gilded here ....
My new 'puter sits under a bench on the concrete floor of "the addition" to my lab/shop/sanctum sanctorum. I had it in a cardboard box so I could slide it out for messing with cables, etc. Not a long-term solution!
I picked up four cheap casters on the way home from the dentist, cut out a rectangle from a scrap of plywood, shot 16 screws with the cordless drill and declared it done.