Stewart likes to have cash in her pocket when overseas. "It is much easier to pick up the tab when trying to spoil the family. I love being able to push in front and hand it over before my daughter can stop me. I just wish I had a crystal ball to know when to buy the better rate."
ASB chief economist Nick Tuffley expected the New Zealand dollar to track lower against the US, Australian, British and Euro currencies over the next year.
He expected the most movement against the US dollar.
Theoretically, travellers would get the best rate now but there were also likely to be short-term bounces over the year.
Cameron Bagrie, ANZ's chief economist, agreed the dollar would likely be weaker in 12 months. Commodity prices pointed to a big drop but New Zealand interest rates were still higher than most, which would moderate the fall.
He said the uncertainty was China. "Historically, when the dollar corrects, it corrects an awful long way but that has been linked with a global event ... the Asian crisis, the dotcom bubble, the GFC.
"If the China economy holds up, the NZ dollar will hold up. If the China story deteriorates, the NZ dollar and Australian dollar will continue to get whacked."
But he said making month-on-month predictions was not easy. "There will be more flip flops than on the beach at Bondi."