Yallstore via eBay offers the Car Auto 12-volt Vacuum Cleaner for $6.95 with free shipping. That's tied with last week's mention, $7 off, and the lowest price we could find. It includes a nozzle attachment and an upholstery tool / dust brush.
Planning for retirement savings to last until you are 90 or older is a daunting job. Make these errors, and the task goes from "difficult" to "impossible."