Travel expert Simon Calder says a popular holiday booking tip is not true. People want to save money on trips, but it's hard to know the best way to book.

Finding the best price is tough. You can book early or wait until the last minute. Flight prices can change every day.

Airlines change ticket prices based on demand. Some people think booking websites raise prices if they know you're interested.

Some people suggest using private mode and clearing cookies to get the best price. But Simon Calder says this tip is 'nonsense'.

There are tips to save money on plane tickets.

Simon Calder was asked if using incognito mode works. He said it's not true and he's happy to stop this 'nonsense'.

Simon wants to see proof that using cookies affects prices. He says it's an 'urban myth'.

Websites don't raise prices just because they know you're looking for flights. It doesn't work that way.

Prices change when other people book the same flight.

Airlines charge what they can. If the price increases, it's because someone else booked a seat.

Simon warned people about a problem that can ruin their holiday. Many travelers have already missed their breaks.

If you're traveling to the EU, your passport can't be older than 10 years. It must also be valid for at least three months after you return.

Simon told people to check their passports before it's too late.

Simon said you can't have a passport older than 10 years when entering the EU. This rule only applies to the EU.

Every other country only cares about the expiry date. Please check your passport if you're traveling in June, July, or August.

Make sure your passport is not older than 10 years and has at least three months left. This way, we can avoid ruined holidays.