Shortly after uploading a heavily annotated description of my GTDmobile on Flickr a few months ago, a falling fire extinguisher hit me in the face, resulting in "whiplash."
This put me in bed for a week. I made a number of modifications to the GTDmobile to make it more comfortable to work from bed for long stretches.
I'm all better now, (thanks for asking), but the GTDmobile improvements remain.
Here's what I changed:
I moved the tickler file to a basket that hangs off the side of the cart. This allows more hand-room for using the laptop directly from the cart.
I added labels for the pockets of supplies. When I was stuck in bed, I had to rely on help from other people. I know where *I* put the stapler. If I want other people to be able to find it, or to be able to put it away where I can find it later, then the pockets need clear labels.
I added a shower curtain ring to hold a headset for the telephone. If you know anyone with a neck injury who doesn't have one of these, order one for him immediately! This was a lifesaver. I still use this all the time, now that my neck has healed.
I added a carabiner to hold a plastic grocery bag, to hold trash. Eliminating the extra reach to the garbage can was a welcome improvement.
I bought them in bulk, because I like to use them liberally and leave them in the books. (I keep a similar bag of these inside a kitchen cabinet, for marking frequently used recipe pages in cookbooks.)