The simplest way to create a personal folder is to open Microsoft Outlook, click the "File" menu (located in the upper right hand corner), click on "Data File Management,"and after the window appears, click "Add." You will then need to name the personal folder and then provide another name that will appear in the folder pane. Click "OK" and you are finished! Just drag and drop the emails you would like to save from your inbox to your new personal file. Once you have created the personal folder, you can create subfolders to separate emails by subject matter simply by right clicking the personal folder and choosing "New Folder."