Banana Republic Tailored-Fit Cotton Sateen Blazer Nautical Blue Blazer is on sale for $100.
If you sign-up via email for 25% off coupon. Blazer comes down to $75 + tax.
If you have Discover card. You can redeem cash award by buying a $50 Gap e-certificate (instant) for $40, saving $10 more. So total you would be paying is $71 including tax.