Pick the one that works best for you (NOTE: for the mathematically-challenged, the second one is a better deal until you get to $100).
From now until the end of February (2/28/2007):
10% Off Any Purchase at 39DollarGlasses!
(discount applied at checkout)
From now until the Ides of March (3/15/2007):
$10 Off Any Purchase at 39DollarGlasses!
(Use the code "Winter10" at checkout)