Macy's discounts a selection of men's blazers and sport coats, with prices starting from $29.63. Pad your order with a beauty item (they start at $3) to bag free shipping; otherwise, shipping adds $10.95. (Orders of $49 or more receive free shipping too.) A couple of best bets:

Bar III Men's Slim-Fit Knit Sport Coat for $39.99 ($255 off)

Tallia Men's Slim-Fit Pattern Sport Coat for $52.96 (pictured, $297 off)