Charles Tyrwhitt offers its Charles Tyrwhitt Men's Dress Shirt in several color and style options (Classic Fit Non-Iron Twill Blue Gingham pictured) for $29.50. (Click on "Dress Shirts" in the "Sale" tab to see these deals.) Coupon code "WKND15" drops that to $25.07 and bags free shipping. That's $4 under last week's mention, a savings of $98, and the lowest price we've seen in over a year. It's available in collar sizes from 14 to 20 and select sleeve lengths from 32 to 38. Deal ends January 13.