This may sound a little far-fetched, but anyone who's suffocated a still-hot laptop in a zip-up sleeve might be interested to hear about a bag that cools its contents without the help of a fan. That, at least, is what Thermaltake claims its "iXoft Notebook Carrying Bag" can do.
The 15-inch bag uses "unique thermal shifting chemicals to spread heat out evenly across the pad," according to Fareastgizmos, which "melt into a gel state when heated and solidify into crystal state when cooled." Yes, it could well be an attempt to capitalize on burning laptop fears, but that doesn't mean it won't work.
The company does have something of a track record on the subject, especially where sweaty palms are concerned. Besides, it's more convenient than lugging around a laptop in a picnic cooler. Just be sure not to use it with one of those Glacial touch screens that's supposed to stay warm.