To buy: $19 (was $22); amazon.com. Don’t underestimate this small vacuum because of its size. It charges via a USB cord, and after a full recharge, it will last for up to an hour of continuous suction. It even has two side air vents to prevent overheating. It’s “very very useful and powerful for keyboard cleaning,” according to a reviewer, and comes with two types of nozzles (one flat and one brush) to use on different types of surfaces. Even shoppers who had doubts said the little vacuum ultimately “impressed” them. One said that they tested it out on several keyboards and it cleaned them so well, “each keyboard tapped almost like new again.” They added that it’s perfect to “get at those tiny areas that never seem to come fully clean” on items around your house. The best part is that you can remove its filter, nozzle, and brush to wash for an easy clean, and since it’s so tiny, you can easily bring it with you on the go—just think how convenient it would be to use on dirty cupholders on road trips and to clean out crumbs and loose bits of paper from your backpack or tote bag. Others say it’s perfect for hobbyists and household appliances like sewing machines that can easily be covered in a blanket of dust. A shopper called it “perfect for hobbyists” and shared that they used it to clean up around a model train layout. It “works perfectly,” they added, since it only picks up dust and debris scattered around without disturbing the attached pieces.