@Binder I also do that. I don't know how you manage retrieving data however: I do the following.
I label each computer with a number, then I have another computer called "Register" were I store no data. In the Register I have an excel file with three columns, the first one has the number of the computer which stores the data, the second one has the name of the file which contains the data and the third column is a short description of the data.

I'd like to know how you do this kind of management, because at computer 53 the excel in the Register is starting to get a bit unwieldy.