Elle Macpherson underwear is gorgeous and I was going to order the new Dentelle colour and spotted there is 20% off across most of the range. The outlet has 10% off as well. There are other offers too but have been around for a while. There's still free delivery on hosiery so if you get some nice hold ups or something to go with the new undies there's no delivery charge otherwise £3.50. Discount automatically applied at basket.
Edit bit - I used Wallis9 and also added tights to the basket. When removing the tights I got free delivey. Don't know which one took off the delivery though.