My wife hated it when I would keep the bedroom light on when I was on my laptop completing research or something like that so I decided to take one of the mini LED lights she bought me for Christmas form Radio Shack and some #6 AWG insulated ground wire and made this:
Step 1: The components
First I took a little round LED button light my wife found at Radio Shack and some #6 AWG ground wire I had on my truck. You only need less than 2 feet so if you don't have any don't buy it. Find your nearest telephone repairman or electrical worker (Power Company) and ask POLITELY and they will most likely give you more than you need.
Step 2: Bending the wire
Bending the wire is easy. I used my Gerber multi-tool but you can use some stout needle nose if you have some. I recommend not using side cutters as the jaws are not narrow enough for some of the bends.
For the light holder I simply wrapped the ground wire around the SKINNIER part of the light. I did this because wire has to be bent further than you want it to be when you are done. It will spring back a little. I used the skinnier part because I wanted the light to simply rest on top of the wire.
Next you'll need to bend the wire where it attaches to the laptop lid (or screen if you prefer to call it that). You should not use the computer to actually mold the wire so use your guessing power to decide how much of a loop to make around the lid.
You will need to start below the top of the lid but just above the screen and wrap it over the top, down about an inch or two, bending it to the side, back up the back of the lid, over the top and then a fancy loop to finish it off.
Step 3: You're done
Simply place the holder on the lid, turn on your light and place it on top of the big loop. You're done.