Charles Tyrwhitt cuts up to 60% off a selection of men's shirts, with prices starting at $29.50. (Click the "Shop all sizes" button.) Plus, take an extra 5% off via coupon code "MSSALE5", dropping the starting price to $28.02. Shipping adds $9.95 or get free shipping on orders of $75 or more via the same coupon. Deal ends October 2.
Stocking up? Take an extra $15 off orders of $75 or more via coupon code "SUPERSAVE". Shipping adds $9.95, but this should yield a slightly higher discount on an order of three shirts.