But that wasn't the case for Manchester City boss Pep Guardiola, who left his behind ahead of his team's flight to Iceland.
The 'Citizens' play West Ham in their final pre-season game in Reykjavik on Friday and they were nearly forced to do so without a manager.
Luckily for Guardiola, his personal assistant Manel Estiarte came to the rescue, delivering his travel document in time for the former Barca boss to board the plane.
Portuguese winger Bernardo Silva was among the travelling party, with the former Monaco man expected to make his first appearance in a City shirt against Slaven Bilic's side.
At the airport with @BernardoCSilva! More on our Instagram story now! mancity. #mcfc pic.twitter.com/KqF5Z9w4Hy
— Manchester City (@ManCity) 3 August 2017