Retailers might be enjoying a post-Christmas spending bonanza, but an economist warns the sales boom can't last.

Shoppers took to the Boxing Day sales with gritted teeth yesterday, battling full carparks, queues and crowds to snap up bargains.

Festive lights, Christmas trees, a jolly Santa waving you in and carols can be the magic formula for retailers trying to lure shoppers in and seal a deal.

Consumers cutting loose after a year of watching their wallets is one reason for a huge increase in Christmas spending, according to the Retailers Association. Paymark said just over $3.2 billion went through its network between Nov 30 and Dec 20.

Kiwis are flocking to the shops to stock up for Christmas, with eftpos spending up on last year. Westfield spokeswoman Deb McGhie said it appeared shopping centres were busier this year than last - though they wouldn't know for sure until next year

Christmas shoppers are being tempted with offers of "interest-free" cash loans before an interest rate in excess of 500 per cent kicks in.

As the first set of viewer ratings are released for the Shopping Channel, the company says it is more focused on how many people are buying than watching.

Retailers are in a Christmas sale free-for-all with only 15 days left to the 25th.

If you're keen for a shopping fix overseas this holiday season here are the best streets around the world to fill up the suitcase with goodies.

Go on admit it, we all do it - check out what is on display in the bedrooms and bathrooms when we stay at or visit other people's homes.

Christmas shopping made easy with Sam Judd's top ten gift ideas that are both easy on your wallet and on the planet.

The cost of clothing has hardly budged in the past 20 years - and items can be even cheaper if you're prepared to barter.

Head north and hit the Collectables Trail.

Kiwi shoppers are being enticed into the famed New York department stores of Macy's, Bloomingdale's, and Saks Fifth Avenue to do their Christmas shopping.

As the Christmas shopping season swings into gear, three in five people will trail from store to store to find the cheapest price.