10) I'm travelling with a baby. Can I still choose my seats online?

Yes - however, you'll only be able to choose from certain seats as infants can only sit on the side of the aircraft where the double oxygen masks are located. These seats are marked with an 'I' on the page where you choose your seats. 

Flights with other airlines
This varies depending on who you're flying with - you'll be given details whilst you're checking in online. If you're not sure who you're flying with, take a look at "Which airline am I flying with?"