Nordstrom Rack takes up to 89% off a selection of men's clearance shoes, with deals starting around $10. (Prices are as marked.) Shipping adds $7.95, although orders of $100 or more qualify for free shipping. A couple of best bets, each with $7.95 for shipping:
Andrew Marc Men's Walden Leather Chukka Boots for $40.18 ($88 off)
Original Penguin Men's Willie Leather OP Derby Shoes for $59.98 (pictured, $120 off)
Uncle Sam could take a hefty chunk of your retirement income if you botch this.