1.Go to gap.com, scroll down to see a box to enter your email:
Sign up for emails and get a special offer. (They will e-mail ya a $15 off $75 code to Gap.com)
2.Press submit. On the next page, check "Men" for "What products are you most interested in hearing about?"
3. Under "Would you like to hear about other Gap Inc brands?", select Banana Republic, check "Men" (will give you free shipping)
note that you may need to use a new e-mail address, if you've registered with BananaRepublic.com before. The codes they send ya are one time use codes. Also, sometimes the codes go into your spam or bulk folder, so you might want to check there as well. From personal experience, sometimes the coupon may take up to an hour to come.