Air passengers with a comfortable trip as a primary purpose should follow the 10 suggestions given by "BBC". The passenger-type should: 1) Pay attention to low-cost ticket, the destinations could be far from the city it wants to visit; 2) Pack with care, to avoid undesired damages or leakages; 3) Avoid to insert not allowed objects in the hand luggage; 4) Check-in as soon as possible; 5)...