I take things like cutlery and the small dishes that nibbles and butter etc come in. I also take glasses. These are souvenirs of the flight.

They must have the airline logo on them to be souvenirs so I have always assumed the airline is happy for this to happen rather like hotel toiletries. No logo, no souvenir!

Glasses are useful to impress one’s guests. But the rather small pillows and blankets are really useless in that context.