Go to Favorites > Organize favorites
Click 'Create Folder' and name your folder 'Banks'. Repeat for 'Cars', 'Estate Agents', etc.
To move an existing favorite into a folder
(while in 'Organize favorites'), click on the required favorite and then on 'Move to folder'. Click on the folder name and 'OK'.
To add a new favorite to a folder, go to the required page. Click on 'Add to favorites' and then 'Create in'. Click on the folder name and 'OK'.