Best way to clean a venition blind?

elliesmemory1

What's the easiest way to clean these blinds please? Mine gets so dusty. I find it very time consuming to wipe each bit. Got a special duster thing but it's useless!

theonlywayisup

https://www.google.co.uk/?gws_rd=ssl#q=venetian+blind+cleaner&tbm=shop

EssexExile

When I said to the blind salesman that they are a pain to keep clean he said "You just have to dust them once a week". What, every week?

I just tilt them so the upper side of the slats is angled away from me, then I can't see the dust.