Well, it's not exactly a store wide sale, but I put two of my handpainted yarns on sale for $10 (from $13) because they will be expiring in a couple of weeks and I don't plan to renew them. They were very early ones, dyed with food coloring and Kool Aid and since I'm using "real" dye now, I would just as soon let them go. I think they're just as pretty as the new ones though (and I'm still a bit amazed at the colors I got on the blue/green/purple one)--it's just me being a bit silly, I guess.
If you buy them both and mention this blog post in the comments, I'll even give you free shipping as well. What a deal, eh?