IRISH consumers will spend almost €300m online this Christmas.
Sales are expected to peak over the next two weeks, as shoppers aim to ensure delivery in plenty of time.
The busiest days will be next Monday, November 26 and Monday, December 3 as workers break into November pay.
Online retail expert Alan Coleman of Wolfgang Digital said figures from Visa Europe showed Irish customers spent €257m online last year, and this was increasing by 10-12pc a year.
Mr Coleman said December 3 would be the 'Mega Monday' for shopping, with Google data showing Monday evenings were the busiest online shopping time.
"The data shows very clearly that people surf the net at work to choose their purchases, then go ahead and buy from home between 7pm and 9pm," Mr Coleman said.
While Irish retailers dominate online purchases of food, alcohol, flowers and furniture, they're neck-and-neck with foreign sites for electrical goods.
For books, DVDs, perfume and music, overseas websites predominate.