The place was getting too dusty — the bed and the sofa both had a layer of it — so my wife said we should buy a “mite remover”. I looked into it and, well, a “mite remover” is just a vacuum cleaner with a UV lamp bolted on… So we might as well buy an actual vacuum. A vacuum isn’t only good for handheld work; you can swap the head and use it on the floor too. That’s how I ended up with a Xiaomi vacuum. It happened to be on sale — 12 interest-free installments, a 50-yuan coupon, and a free Xiaomi desk lamp thrown in. So I bought it.