SpaceNK are re-running the very popular 20% off everything (except vouchers) pre-Christmas promotion, from today until midnight on Sunday.
There's an email to print and use in the shops, or use the code GLAMSLAM when ordering online or by telephone.
If you aren't on the SpaceNK mailing list, you can print off the voucher from the SpaceNK Facebook page here:
I'm kindly forwarding this to Mr London, just in case he was planning to get anything from SpaceNK for me for Christmas...
Edited to add: well, the code definitely works, and there is free shipping on orders over £75 online. (Christmas stuff for Mr London was mostly purchased, although I might have snuck a lipstick for me in there with the money I'd saved).