From A!K Research:
NotesHolder lets you quickly type in any piece of information so that you can easily find it when you need, read it or print it out for your convenience. This is the most effective way to store all your notes without cluttering up your desk with PostIt and sticky notes. Unlike the other similar applications, NotesHolder is very thrifty with your screen space. You can even turn off NotesHolder icon in the system tray. But if you move your mouse cursor to the edge of the screen, the list of the notes sorted by the time of creation and divided into categories will pop up. Click once to create a new note or to edit an existing one. Click once more to print the note. Version 2.1 adds full unicode support.