I spend a lot of time at my desk which I'm sure it not a unique experience. Recently I've been feeling like I needed more desk space. I kept looking for places to put things that I wanted to keep close by, but didn't have any good spot for on my desk. Building my own desk has been one of those projects which has been perpetually unfinished. Some day I'll get around to finishing it. Until then, in the same fashion as the 2x4 monitor arm by our own Dr. Fish my desk is now a door.
The cost of said upgrade: zero, zilch, nada. I found the door in the back corner of the woodshop covered in dust and a few long since dead spiders. I'm not even sure where it came from. The new desk surface is six feet long and two feet wide. I chopped a few inches off the former height of it order to more easily fit it in my car, so now you can see the hollow-core innards of the door from one end. Maybe I'll patch that at some point. The monitors are also a bit off center which will probably start to bug me after a while, and I currently don't even have it attached to the frame of the desk. It's just sitting here, but I'm calling this a good days work regardless.