The Spair Tray Travel Shelf If you've prebooked a window seat, slip one of these babies into your bag and turn your window into extra storage space. The Spair Tray Travel Shelf (£19) clicks into place on the window to give you the perfect spot to stash your phone, drink, and any other in-flight essentials. Just beware of turbulence! Image Source: Pexels / Gratisography Spair Tray Travel Shelf £19 from amazon.co.uk Buy Now