Putting the "less" in threadless.

Today, Threadless.com is having a Twitter sale event: every hour, on the hour (sort of), they Tweet a coupon code in denominations that will get bigger as the day goes on. $25 at 10:00 am PST, $50 at 11:00 am, etc.

I've been trying to cash in myself, without much success. They're describing it as a "gift code," which makes me think no purchase is required, but evidently it's first-come-first-serve and it sounds like there's a total amount that gets used up and goes away. Just now, I auto-refreshed Twitter, saw the noon code 30 seconds after it was posted, and it was already invalid on the site. So, if you want to sit around trying to make it work, good luck!