Black & Decker handheld vacuum, destined for the garage.
I acquired the 10.8V version of this a few years ago, on a deal, for my bench. Not a huge capacity but for cleaning dust and swarf and little bit of wire it does the biz. The side hatch flips open for emptying, and the entire side rotates slightly then just falls off for cleaning (it and its filter) under a tap. There were two annoyances: first, the supplied nozzle is just wrong - if it didn't include the brush part, that gets in the way when stowed and is useless when not, it would be better. I wound up 3D printing a proper crevice nozzle.
Second, the battery life is fantastic and you can leave it plugged in forever without it overcharging. But it's a (special) plug in the back and sometimes I forget to take that out before walking off with the thing, and there's enough loose cable to get up a head of steam before it pulls back.
This version is 18V and allegedly twice the sucking power (not that it needed more, but I won't argue). It comes with the silly nozzle but now also with a proper crevice tool, and there is no plug - couple of spring contacts on a (new) base plate. Wondering how long they will last, but I just spent more than a few minutes putting it down and lifting it away to see if it would land in the wrong position to charge. Seems fine
Stupidly expensive, even with nearly 50% at Amazon now, but it is unique and I like it. More importantly, there is now no excuse for Someone Else to leave sawdust all over the bandsaw and pillar drill