Thumb Score: +15

Woot! [woot.com] has Lasko CD09250 Ceramic Adjustable Thermostat Tabletop or Under-Desk Heater, 9 Inches High, Black for $15.
Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.

Price:
$27.49 lower (65% savings) than the reference price of $42.49