Re: << “coverslips” in the article are made of fairly heavy-duty transparent plastic (about the same thickness as a report cover, not the flimsy stuff used for “sheet protectors”). In Japan they can be found in a variety of colors. >>

My highest recommendation goes to model A-10 made by ITOYA, entitled “See-Thu FileHolder (tm).” I keep a stack of about 30 of them next to my inbox. They are excellent collection “bins” for paper of assorted sizes. Annotated sticky notes (with next actions indicated) are clearly visible, and also serve as temporary file tabs.

If there is need for further archiving after the task is completed, the stuff in these “FileHolders” gets transfered into the traditional stiff paper folders.

The idea is to reuse these FileHolders after quick execution (of less than project grade stuff ;-)