Not sure if this one has been posted or not but here ya go.
Save $20 off $100 or more at AdancedAutoParts.com now through March 23rd use code Y420 at checkout. You'll also receive free shipping on all orders over $75
If you are shopping for brakes you can get 10% off brake pads & shoes through March 31st enter BRAKES10 in cart ( I doubt they can be combined but YMMV)
Advanced Auto Parts $20 off $100 
