The $200 Lubluelu Cordless Vacuum Cleaner is on sale at Amazon for $100, and it's a certified cord-free marvel. Shoppers are so pleased with its performance, they're saying, "it's as good as a Dyson at a fraction of the price."

Dyson says that its new PencilVac is the slimmest cordless vacuum cleaner in the world, and by the looks of it, that sounds about right. It's also the company's most powerful model to date.