I know you said not hand held but my Dyson hand held pet hair one for me is a life saver, if we were unfortunate enough to have our house on fire the one thing I would save would be that.
All our floors are wooden and we have a hairy dog. I thought that I might be encouraged to do an occasional scoot around the house with a portable rather than hauling out the mains version.
I have a cordless Dyson which I'm very happy with. If you put cordless vacuum cleaners intron the search box (top right) you'll find a few threads on this.