Don't forget the 10% off FREE10 coupon code (expiry unknown) as well as a first-time order code when you sign up for the newsletter (15% off). As far as I know, these codes can be "stacked" (i.e. used together) though I don't know if they can be used in conjunction with the above sale. Worth a try, right?
By the way, I've been adding bunches of nail polish blogs to our blogroll on the sidebar. If you know of a nail polish or nail art blog (or a beauty blog that features nail polish at least 70% of the time) that I haven't yet linked to, please let me know. There are 145 nail polish blogs listed here so far and I'd love to have a more comprehensive list of them!
