I know it sounds silly, but I ditched using the SB36's on domestics and went for an unbranded small one out of Argos@ £50. Picks up more than the Sebo and is easier to move around because its lighter. I was only expecting it to last 6 months - its still going after a year!
A bit like what Mike said, but you could alternatively use a henry with a turbocat attachment to pick up even more than a standard head - which is useless (without using a TM). The heads are about £85 but are very very good. Do a search on ebay for them. They have a rotating beater bar, and use the vacuum to drive it.