Hoodman e-clipse e2000 laptop hood

--Eliminates glare
--Allows for private viewing
--One size fits all
--Rugged spring loaded nylon hood pops into shape instantly.
--Hood collapses quickly into its flat 8" travel bag

e-clipse fits on Powerbooks, ibooks and 95% of the PC laptop market

At first glance, I thought this Powerbook cover was made for these frigid Midwest winters, but the patient sales rep informed me it was to block external light, so you can more easily use your Powerbook in direct sunlight.

Called the Hoodman, this $40 soft nylon cover folds up like a camping tent to fit inside your carrying case. (comment by ResExcellence)