Millennials 18-to-34-years-old are the biggest e-commerce spenders. A recent report found that these young consumers spend an average of $2000 shopping online in a given year, more than any other age group. Considering the fact that Millennials are likely making less than older shoppers, that’s a significant stat. The study also busts some gender stereotypes: although women control up to 80% of household spending, men shop online just as much and are even more likely to make purchases on mobile devices, with 22% of men and 18% of women making online purchases on their smartphones last year. (Business Insider)