Note taking app that supports folders and sub-folders?
I do tech support for a software company, and take notes on clients, software applications, projects, etc. I'm looking for a note taking app that supports the use of folders and sub-folders.
For instance, I envision a 'notebook' with a folder called 'Clients' and a folder called 'Applications'. Within the Client folder, there would be sub-folders for each client. Within that sub-folder, there would be multiple 'pages' on various topics pertaining to that client.
And in a perfect world, there would be a corresponding Windows application to provide access to my notes from my PC.
Any thoughts? Or am I asking for too much?
Thanks in advance!