Robots are expensive, and honestly a bit rubbish right now. Which is a good thing because it means they can't rise up and kill all the humans. But people still want them, because automating stuff is a lot nicer for our lazy selfish selves than getting out of bed and doing some proper work. Which is why you might be interested in this Roomba discount.
If you head over to Amazon right now you can save £218 on the iRobot Roomba 960. Normally it would cost you £668, but today (and only today) it will cost £450 - which is a third off the normal price. Pretty good if you ask me, even if this model is over two years old.
Naturally, for that price, it's still quite high tech. It's got Wi-Fi connectivity so you can program and control the thing via the smartphone app, as well as the computing chops to track its location and remember where it's already cleaned. So no going round in circles doing the same patch of floor over and over again. It's also compatible with Alexa and Google Assistant, and has fancy tech to help it avoid obstacles.
Battery life is 75 minutes too, which is a lot more than you'd get out of a handheld cordless vac.