A while back I posted a link to my review of the Stanley 85-721 3-piece spark plug socket set (which you can read here if you want). In the review, I stated that I paid about $13 for this set of three sockets, and it was worth that price.
Well, right now Amazon is selling that same socket set for $5.99. I couldn't believe it when I saw it, but it's true. Not sure how long that price is good for, but the set is also eligible for free shipping. That socket set was a good deal at $13 and change, but for $5.99 it's a steal. That's about $2 per socket, and they are nice sockets.
If you want to check the set out, head over to Amazon now before they decide to raise the price.