Hand-luggage-only passengers are increasing in number as cheap airlines offer no-frill tickets.
This means not being allowed a bag in the hold without paying an additional fee.
Britons instead cram everything they need for their holiday into one small suitcase to take into the cabin.
Yet recent rules have changed regarding what is allowed into the cabin and what is not.
What are the latest restrictions for hand luggage and substances?
Liquids
Anything that is a liquid form must be under 100ml.
This can include toiletries, drinks and cosmetics. Liquid food such as jams and soups are also included in this; Marmite is also not allowed.
To be allowed onboard, they must all fit into a plastic bag that seals shut and is 20 cm by 20 cm.
The only exemptions to the rules are for baby food and baby milk (only if the baby is present), which can be up to 2,000ml and must be unfrozen, food for people who have dietary requirements, or items for medical purposes if a note from a doctor is given.
A lighter also counts as a liquid and only one can be brought onboard, which must fit into the plastic bag.
Electronic devices
Devices must be charged before being brought onboard. If they are not then they will not be allowed on.
Electronics allowed onboard include laptops, tablets, mobile phones, cameras, e-cigarettes and electric shavers.
If travelling to Turkey, Lebanon, Jordan, Egypt or Saudi Arabia, any gadget must be no bigger than 16cm x 9.3cm x 1.5cm.
This also includes connecting flights through these destinations, even if they are not departing the airport.
External power chargers and batteries being allowed in the cabin depends on the airline so it is worth checking beforehand.
Sharp objects and substances
Knives, corkscrews, and scissors over 6cm are not allowed in hand luggage. Scissors smaller than 6cm, fixed razor blades, tweezers, nail clippers and knitting needles are allowed onboard.
Recent changes to the industry have included powders when travelling to the US or Australia.
Powdered materials must now be under 355ml to be brought onboard, or the equivalent to a small can.
This can include spices, coffee, talcum powder and protein powders.
Surprising items not allowed on planes include party poppers, which are classed as explosives, tent pegs, which can be seen as weapons and hair dye, which has banned chemicals inside.
Oversized items must also be checked with airlines before boarding for sizes and costs, such as sporting equipment, musical instruments and fishing rods.
