One unusual item that could land you fine if you pack it into your hand luggage

No matter how good you think you are at packing for a holiday, I'm willing to bet you've been caught out by the hand luggage rules at least once.

Whether it's struggling to fit all of your liquids into those, quite frankly, tiny see-through bags, or having to argue with the staff about whether or not your bag can feasibly fit underneath the seat in front of you, we've all been there. Right?

And while we resolve after each and every trip to the airport that it's going to be seamless the next time we jet away, life rarely goes according to plan.

If we weren't being rewarded with a stunning trip away at the end of all the faff, we're pretty sure nobody would ever step foot in an airport again.

One thing that also manages to stump many travellers is banned items.

Many are obvious - knives and other weapons for example - but there are lesser known things you can't bring onto your flight.

Travelling with hand luggage is a stressful experience (Getty Stock Image)

Something you should absolutely never pack alongside your book and eye mask is hair dye.

Experts at luggage site MyBaggage.com told The Express: “If changing your hair colour was at the top of your holiday list, think again.

“The chemical Peroxide found within the dye is banned from airplanes.”

This is because it falls under 'Chemicals and Toxic Substances'.

The UK Foreign and Commonwealth Office (FCO) warns: “You cannot take any of these items as hand luggage or in the hold: oxidisers and organic peroxides, including bleach.”

And if you decide to risk it and get caught (and let's face it, you will get caught), you'll have them taken away from you and you could even face a hefty fine.

Don't even think about taking hair dye in your hand luggage (Getty Stock Image)

The experts continued: "Ensuring everything you pack at home is allowed onto the plane is an easy way to prevent a stressful experience once you reach the airport.

“Some items you might not think as a problem when packing, but when safety is considered it becomes clear why they aren’t allowed in hand luggage.

“Having items removed from you and potentially being handed a fine is not how you want to start, or end, your trip away.

“Each airline may have different restrictions, so it’s important to check every time you fly.”

And for those with a sweet tooth - don't even think about packing marzipan in your suitcase.

John, a baggage handler at Dublin Airport, shared with RSVP Live: "[Marzipan] has the same density as some explosives so your bag will be removed and you’ll be called from the plane for a bag search."

Definitely best to leave it in the cupboard.