SurfStitch's Click Frenzy sale — 30% off sale items when you use coupon code FRENZYSALE30. Lots of styles on sale. Offer ends tomorrow (18 May) at 7PM. Extended until midnight 19th May.
Edit: It appears that the coupon code does not apply to all sale items. From the Click Frenzy page (as suggested by franco cozzo), these are the ones advertised:
….nvm. looks to be working!