Snopake Eligo 13 Part Portrait Desk Expander

Not sure what the advantage is that this gives. Easier to stack up documents in a 'pending' tray unsorted and then sort them once and once only into the various box files, etc (utility bills, medical, money, general correspondence, etc) where they belong. Presumably with this 'expander' you end up doing it twice. Mercifully more and more of this bumf is digital these days and lives in 'my docs' (but regularly backed up of course!).