I usually vacuum with a Miele cylinder but got the old upright Dyson out yesterday whilst attempting a pre Spring clean session.
Was rather surprised and disgusted that I filled the dust cannister with one vacuum of the house (average sized 3 bed semi with carpet throughout upstairs and in 2 rooms downstairs.
Thinking of retiring the Miele as it clearly isn't doing a very good job but need something to vacuum wooden floors (old Dyson upright is only suitable for carpet)