Sears Outlet offers the Craftsman 4-Piece Socket Adapter Set, model no. 4235, for $4.85. Opt for in-store pickup to avoid the $6.25 shipping charge. That's a buck under our mention from two weeks ago and the lowest price we've ever seen. (It's also $13 under the best shipped price we could find elsewhere.) It includes 1/4", 3/8", and 1/2" drives.