Seems like Ozbargain likes T.M Lewin shirts, so here's one using their FB ad for $40 shirts combined with a coupon code to bring ALL shirt prices down to ~$34 (from RRP $89.95 for non-iron shirts)
I'm unsure when either of the two will expire.
Step 1: Clear browser's Cookies
Step 2: Go to T.M Lewin and put an item in your cart
Step 3: Go to checkout and apply Coupon Code AUNIBA16
Step 4: Visit T.M Lewin site via this link Shirts should now display with $40 and Free Shipping.
Step 5: Add the shirts you want and order.
Remember if it doesn't work for you, start again from step 1. This method is heavily dependent on your browser's cookies!
Notes:
1) Cheers to "crazy horse" in a previous T.M Lewin post.
2) First post, so be gentle.
3) Also first time ordering T.M Lewin Shirts.
EDIT 1
Updated steps to show where to enter coupon code.
Article comparing Charles-Tyrwhitt & TM Lewing Shirts & Sizing for those that are asking about size or quality.
How do these compare with Charles Tyrwhitt?