This popular deal is back at TM Lewin. Although working from home wont require shirts, I've picked up a few to have when it's time to get back to the office whenever that will be! Delivery is $10 but if you can't find anything to add to make up the free postage, just add one of the $1 women's knot links.
Good quality shirt with a nice fit. I have a slim Asian build and the super fitted is what I wear.
EDIT: The deal only applies to shirts that are already discounted and not full priced ones. Still a great deal though!
EDIT: Deal is back on.