Warning issued to anyone who has a suitcase in one of these colours

Kids across the UK break up for their summer holidays from tomorrow (25 July) and I'm sure many families can't wait to jet off somewhere sunny and enjoy a well-deserved few days off.

Now, while holidays are great, the organisation that goes into sorting one out is far less exciting.

From the booking, the impending airport drama and - of course - the packing, it's clear that the fun only properly starts once you've rocked up to your hotel, ordered a cocktail and unpacked your suitcase.

And now, there's one more thing to worry about with the latter as an airline has issued an urgent warning to anyone who has a suitcase in one of three colours.

You may need to double-think your suitcase choice. (Peter Dazeley / Getty Images)

Now, we already know all about the perils of tying ribbons onto luggage along with the little-known baggage rule that could seriously change your travel experience, but the latest top tip is all about what type of suitcase you opt for when travelling.

If you're on the hunt for a new piece of luggage, budget airline Ryanair has advised you steer clear from three common colour choices.

As we all know from years of jet-setting, and impatiently waiting at baggage claim, the case colours you're most likely to see are; grey, blue and black.

While these colours may be the easiest to match with any airport outfit, they're actually not very practical as it can makes it super tricky for passengers to find their one out of the dozens on the conveyor belt.

To 'make it easier' to spot your checked-in luggage on the carousel, and ensure it doesn't get mistaken for someone else's, Ryanair either avoiding those three colours altogether or adding a distinct trait to make it stand out from the rest.

Ryanair has warned against black, navy and grey suitcases when travelling. (izusek / Getty Images)

They suggested possibly adding a 'colourful luggage tag' to your handle 'so that there's no confusion on arrival'.

And it's not just your luggage you need to be organised with as Brits have been warned to make two urgent passport checks before going on holiday this summer.

Money saving expert, Martin Lewis, said: "Check your passport will be valid - it's got stricter. There are two important checks you should make, it's all about the day you enter the country."

He continued: "Will there be over 6 months left (3 months for EU)? Even if so, will your passport be less than 10 years old?"

He went on to explain: "If you said no to either, it's worth checking our country-by-country UK passport rules to ensure you won't be sent back at the border.

You want a suitcase you can easily spot at the baggage carousel. (Getty Stock Image)

"Yes, it happens."

He then went on to add that someone had emailed in to 'tell us she missed the first four days of her £6,500 cruise after being denied her flight because her passport was just over 10 years old'.

And if you need to renew your passport, time is of the essence.

Lewis added: "Need to renew? Don't dawdle.

"The Passport Office says you should allow 'up to three weeks' - but it can take longer."