MoneySavingExpert.com on Instagram: "Booked a summer holiday abroad for you and the family? CHECK your passports NOW - or it could cost you dear... As a rough guide, if you’ve less than 10 months left on your current passport, it’s probably worth renewing now to beat the incoming hike. Here’s why: A standard adult passport lasts for 10 years and used to cost £72.50 – which works out to around 60p per calendar month of ownership. In other words, each month you have left on your passport is ‘worth