I discovered a new coupon code this morning (or actually, it's an old coupon code, but now working again).
PICKLE (expires 11/30/2011) gives you 15% off any Indochino purchase. I tested the coupon, it also works for just shirts or pants, outerwear and suits.
Personally, I actually prefer those coupons with high discounts to the ones that give you free shirts or ties. The reason is that I look to spend less, not necessarily to get more.
Of course, if you still have to stock up on shirts you might want to use dailyedealsfall (8% off, 2 free shirts, 1 free tie).
I also want to bring your attention to the Indochino Survey I am currently conducting. It literally only takes 1-2 minutes of your time and the more participation we have, the more we can read from the results. I will put a nice analysis of the survey on the blog towards the end of October and I believe it will be interesting for everyone to see.
http://www.indochino-review.com/p/survey.html