Thanks folks - that all gives me plenty to try. I'll be staying in a nice hotel the night before the ceremony, so I'll be able to experiment quietly in the morning. Well, my male friend will be around, but I'm sure he'll watch telly; it's all he does when he's not on the internet.

And if I look like a bird's nest at the end of it all, i'll just shove it in a plait!

I'll give you some feedback when it's all over, but thank you so much for the advice.