Step 20 to GTD Mastery is: I have all the office supplies I need (p. 92)
Page 92 in Getting Things Done refers to a list of tools for your work space.
Paper-holding trays (at least three)
A stack of plain letter-size paper
A stapler and staples
An automatic labeler
You can see my paper-holding trays (with blank paper), writing tools, and post-its on my workspace.
I have decided on a paperless filing system thanks to the help of Marina Martin at Sufficient Thrust. A post will follow when my Fujitsu ScanSnap arrives. This eliminates the labeler and file folders.
My calendar is my cell phone. Currently, I need to buy some more staples.
The rest of the list can be seen in the picture below. I place the supplies in my desk drawers to avoid the clutter of bulky desktop storage. The garbage and recycling bins are within swivel distance of my desk.
And yes, my recycling bin is an Eggo Waffles box. I used to eat them religiously when I was younger.