I have a related suggestion. We just bought a shark vacuum that comes with a charger, so there is no plugging and uplugging. This is NOT for regular vacuuming by any means. HOWEVER, I have two dogs and I LOVE this thing because I can quickly vacuum up dog hairs from the floors and rugs in two seconds. Then, once or twice a week take out the regular vacuum and clearn more thoroughly. I am vacuuming with this thing super quick and then mopping with my swiffer thing...I am bordering on obsessed...a frequent cleaning whirlwind. Believe me...this is NOT NORMALLY my favorite thing to do. However, for a long time I was forlorn at how my two dogs were making constant messes and how long it took to clean them. These products make everything a snap (quick and easy) and these days my house always looks fresh. I like that someone can drop by anytime and it always looks nice. And if the dogs happen to make a mess...in five minutes I can make it "go away."
As far as a regular cleaner...that one Fran has sounds super and one of these days I might check into something like that. Right now I think I have a Dirt Devil. I simply bought it caused I liked the attachments. I tend to buy a new vacuum every other year. In the end, I might be better off buying a better quality one. Anyway, the one I have now cleans well enough, the attachments are easy to use and it is easy to empty. I bought it on sale...and I think it was less than $100.00.