FORGET the Boxing Day sales - the best place to bag a post-Christmas bargain might be eBay and Gumtree, with Aussies relying on the sites to offload their unwanted gifts.
Sellers began listing their unwanted gifts within hours of opening their presents on Christmas morning, with many items still in their original packaging and boxes.
Many items are in brand new condition, and are often being sold for far below retail price - meaning savvy online shoppers can easily snap up a post-Christmas bargain.
At Gumtree, for example, an unopened collector's edition Star Wars Propel T-65X-Wing drone is currently for sale for just $120 in Doncaster in Melbourne. The same item is available at Myer for $149.95.
Other unwanted presents up for grabs at Gumtree include beach chairs, alcohol and shaver kits.
Meanwhile at eBay, there's a brand new pink Kate Spade leather bag for sale for $39 which is described as an unwanted Christmas gift.
The current bid for a Google Home speaker on eBay is $102.50, and other unwanted presents include a Nutrimetics Perfect Romance perfume for $28 and a SuperDry watch for $89.
In 2016, Australians spent $620 million on unwanted Christmas gifts, and Gumtree spokeswoman Kirsty Dunn told the Herald Sun that around 2.8 million of us onsold our presents online that season.
Given that we were predicted to spent a collective $50 billion this Christmas, it's likely that even more of us will sell at least some of our dodgy presents online this year.
The reselling frenzy follows reports that people in the UK were going a step further by selling unwanted gifts still in their wrapping paper.
According to The Sun, some sellers weren't even bothering to unwrap their gifts before listing them on eBay, with one lot of presents, described simply as "girls wrapped gifts", starting at $43.
The same seller also listed a bundle of men's gifts and a second lot for girls - but none of the auctions revealed the contents of the parcels.
Another UK seller was also offering "10 quality wrapped unwanted Christmas gifts / presents for a lady" - including a watch, chocolates, massager, diary and DVD - on the site.
If you have an unwanted item at home and don't want the hassle of selling it online, make sure you have the original receipt and check the returns policy of the store where it was purchased.
While shops aren't obligated to accept returns based on a change of mind, many large retailers such as Myer and David Jones will let customers return non-faulty items for an exchange or refund provided goods are returned "within a timely manner" and in "saleable condition" as an act of goodwill.