How about carpet sweepers?
I actually still have one - I imagine it doesn't pick up as much as the hoover, but it still removes just about all visible dust from carpets. it's lightweight, quiet, saves electricity, and sometimes more convenient. I just thought of it for this thread today because, after unpacking and assembling a new bookcase, I had lots of little bits of polystyrene packaging on the floor, which I figured were a bit too big to want to risk jamming up the hoover on, so out came the carpet sweeper. Don't think I know anyone else who has one though.
Indeed fire will spread at a alarming rate in modern living rooms in comparison to older ones as shown in the fire fighters demonstration video below where both a modern and older living room are tested side by side.
That seems worrying, but also rather puzzling: I would have thought it would've been the opposite, given that these days, just about anything with soft covers has to pass fire safety tests. Watching the video, I do notice that the issue seemed to be that the particular thing they set fire too in the 'modern' room burned really quickly, until it alone had evidently caused enough flame, sparks, and heat to set neighbouring things alight. By contrast, the sofa that they set alight in the 'legacy' living room just quietly burned a little bit for ages, in a way that I wonder if it's really typical for older sofas. I wonder therefore how reliable that test was.