Neat Firefox Add-On

For those who use Firefox (and if you're not, then how come?), here's a neat add-on. Retail-Me-Not is a site that collects coupons to use for online purchases, and the Firefox addon will pop up a toolbar to let you know if there are coupons available for a specific site when you navigate to it. I've saved some money using this, with coupons to sites you wouldn't even think to use coupons for, plus more obvious ones like amazon.com and others. The selection of coupons is pretty wide, and you get a chance to rate the coupons when you use them. Check it out!