Right above the computer table I am set up pretty well for lighting.
I also have a small flashlight by the computer, which is a lap top with its own power supply, so it would glow for several hours on its own.
A couple of feet away is the back door and I keep a shotgun against the doorstop for pest control. I would have to get up and take a step to get too it, but it is close enough. Today it is a Model 97 Winchester due to me being in a retro mood.
Assorted knives lying about, and my utility knife in my pocket, but they would not be the first thing I grabbed.
I keep the doors locked as a habit, and if the back door is open the secondary "storm door" is locked and the back porch has a latched door also, so there would be some noise involved with anyone creeping up on me. No one is going to get through the main door without a ram, so I have a few moments to react and get the brain clicking.