Payday and the arrival of December are the driving factors behind today's expected cyber shopping surge, according to Sage Pay, which has predicted spending of more than £500 million.
“With just four weeks until Christmas, most of us will just have been paid, so Cyber Monday is traditionally the day when consumers rush online to do their Christmas shopping, said Simon Black, chief executive at Sage Pay.
“Given the breadth of shopping and payment options available to consumers, competition between retailers is greater than it’s ever been.
"Plus, with an emphasis on omnichannel and a host of newer payment technologies beginning to make their mark, retailers can find it difficult to stay that one crucial step ahead of the trends.”
Online retailer Amazon is testing unmanned drones called Octocopters in a bid to deliver packages to customers within 30 minutes.
The drones could deliver packages that weigh up to 2.3kg but the service is not expected to start for at least five years, the company's chief executive Jeff Bezos claimed.
Mr Bezos told CBS television's 60 Minutes programme: "These are effectively drones but there’s no reason that they can’t be used as delivery vehicles...I know this looks like science fiction. It’s not."
"We can carry objects, we think, up to five pounds, which covers 86 per cent of the items that we deliver...These are electric motors, so this is all electric; it’s very green, it’s better than driving trucks around," he added.
The service will be called Prime Air but US aviation officials have not approved use of the drones.
As shoppers gear up for Cyber Monday, retail expert Kate Hardcastle says consumers can avoid Christmas shopping delivery issues by making themselves aware of retailers' delivery and dispatch policies before they buy.
"Make sure you look for things like 'dispatch on' and 'delivery by' - two very different things," the retail expert told ITV Daybreak.
The busiest day of the year for online shopping begins as retailers brace themselves for "Cyber Monday".
It comes after last week's "Black Friday" - a day of flash sales designed to kick off the festive shopping season - arrived in the UK and was marred by violence.
Online shopping figures have consistently peaked on the first Monday of December over recent years, with Visa Europe predicting this year's Cyber Monday will be the busiest ever.
The payment service predicts £450 million will be spent on its cards alone as online transactions reach the 7.7 million mark.
Cyber Monday sales will have grown by 16% on last years, making it the busiest online shopping day in history.
Visa Europe director of commercial development, Jeremy Nicholds, explained: "With an average of £312,500 expected to be spent online every minute on December 2, the Christmas shopping season will certainly start with a bang."