Show that you've reduced a price
It would be good if you could show a price reduction when you have a sale i.e. was £15 now £10 with the £15 crossed through so the buyers can see that you have actually reduced it as opposed to just saying that you have.
I think this is a very good idea, would help attract customers and clear stock. People do like to see what they have saved and showing the original price and the reduced to price would help immensely.