Even the best vacuum cleaners will eventually begin to get hair and stray strings and fibres wound around the roller at the bottom. When that happens, don't reach for a knife or scissors. Grab a seam ripper (aka a quickunpick) instead; it's the perfect size and shape for the job.
Real Simple reminds us that a seam ripper is the perfect size and has a small enough blade to pull up the strings and strands of hair that are likely caught around the bristles of your vacuum cleaner and cut them for easy removal. A few well-aimed snips and you'll have a clean vacuum cleaner with brushes that actually work.
Granted, this tip works best if the roller in your vacuum isn't easily removed for cleaning, but if you find yours isn't as effective as it once was because the roller's clogged with lint, give it a try.
Seam Ripper as Vacuum Roller Cleaner [Real Simple]