jpm is quite correct. Below is Scott's answer.
matt
This is a code I learned from my days of using the Franklin Planner system.
The person asking the question has guessed the meaning correctly, and here
is how it is used.
Any time I have a placeholder for something to do that has support material,
I have a tendency to want to keep the material out and visible. This quickly
becomes counter-productive when I have more than just a couple things out.
Unfortunately, putting them away gives me the slightest hesitation when I
see the to-do item because I have to recall where I put the support item -
computer, file drawer, email folder, wherever. The solution I have found
works best for me is to include in parentheses where the support material is
located. It is very useful in association with calendar items (where's the
tickets, the directions, the notes from the last meeting). It is also
especially useful when I won't be referencing the support material for a
while (like I have put something in a Tickler file).
Calendar - Concert with Tina (dresser drawer)
Office - Draft plan for new product (PF-T)
this indicates Project Folder under T
Errand - Return cable to Walmart (glove compartment)
It would be overkill and a waste of time to put this on everything, but in
the right situation it is a lifesaver. Plus, it only takes a second to note
the location. It takes a lot longer when you can't find it. There is a clear
mental aaah! when I write it down, because I know that I don't have to keep
track of this. It becomes more and more valuable the more things you have on
your lists.
Scott