We find that it really helps when we have everything we need from check-in to flight boarding to on-flight to immigration all in one place! They are then ready and easy to access without us unzipping our luggage and digging through piles of clothes and essentials!
We use this AGVA Portable Traveller Organiser to serve this function!
Dimensions: L235 X W25 X H115 mm
Weight: 0.2kg / 0.4 lbs
Materials: Water-resistant polyester