I've said this in previous deals, but when Charles Tyrwhitt's shirts drop to below $40, it's time to buy.
A couple of times a year they seem to drop below this threshold to $39, however this time round they're actually slightly cheaper at $35.
The only catch is that you'll have to buy at least two shirts plus another item worth at least $5 to qualify for free delivery.
They've got plenty to choose from in the $35 price range, and you're not just left with only the ones in random designs/colours and extreme sizes. Thus, it shouldn't be hard to find something that you like and which fits.
Compare this price against Van Heusen shirts (offering similar quality and styles) and even if you look at Myer, who tend to have the cheapest offers on this brand, you'll be looking at paying upward of $49 on average before shipping. There are a few shirts for under $40 although they're all shown as only having one or two extreme sizes left in stock (at least all the ones that I looked at) and the choice of styles is pretty limited too.
End of the day, Charles Tyrwhitt shirts offer a great fit, style and quality to which I can attest as I've owned a few of them over the years and been very happy with each.