Up to you and up to you what to clean! If you need to clean several times a day (because your dogs or cats are shedding…) it would be best with the handle (quick, easy use) and just flip to the best side. If the hair is deeply embedded between the fibers, it may be best to use with the vacuum cleaner, attached as a head, as it also collects dust stuck at the bottom. Again, we recommend using the small (1-joint) handle for upholstery.