Charles Tyrwhitt has men’s dress shirts on sale for $29.50-$35.

You can add 4 of the $29.50 shirts to your cart for a total of $99, or just $24.75 per shirt, with code: FIREWORK

Alternatively, add 4 of the $35 shirts to your cart and drop the total to $100.20, or just $25.05 per shirt with code: SPARKLER

Click here for this deal, then click on the dress shirt sale link.