How do you get a throw to stay on a leather sofa?

They just slide off - any ideas please?

I would not bother with a throw over a lovely leather sofa. I would rather fold it and place it at the foot end of the sofa with a few matching decorator cushions. Cheers Lisa

Nails... superglue?

They have these things for blankets that attach like a guarder belt does to nylons. Got mine at Wal-Mart.