New Commonwealth Bank research has revealed that Australians love to live it up while on holiday, with a third spending more money on an overseas holiday than planned. Last year, 9.2 million Australians left Aussie shores for a holiday, and with a third of them spending more than planned on their trip, that's more than $900 million of overspending on international travel. While Australians devote around seven months planning their overseas holiday, they are spending an average of 16 hours planning their trip, booking flights and sorting accommodation. However, more than half of Australians admit to travelling without setting any budget or planning how much they will spend. Find out more.