They just had 20% off their entire site some time last week. it was a one day only kind of thing and they sent out notification via email.
if you sign up for their emails they send you something for signing up and also something on your birthday!
eta: saw in my email that you can get either an extra 20% or extra 30% with codes extra20 and extra30. don't know the details or exclusions right off hand though but hopefully it will apply to your item?