Nordstrom Rack cuts up to 85% off a selection of men's jeans, with prices starting at $20.08. Shipping adds $7.95, but orders of $100 or more bag free shipping. A couple of best bets:
Diesel Men's Buster Button Fly Jeans for $69.97 + $8 s&h (pictured, low by $41)
True Religion Men's Geno Classic Moto Slim Jeans for $109.97 + $0 s&h (low by $139)
The dollar store is the most amazing place to find bargains for certain purchases. Yes, even pregnancy tests.