Most lapdesks you buy will bear the heat from your laptop so you don't unintentionally iron your pants with the bottom of your computer, but when you need to move your work elsewhere you have to pick up all your stuff and carry it awkwardly. The Scribe solves that problem by providing a strap for your laptop (or textbooks and pens) so you can easily take it with you.
The Scribe looks like a gray plastic "S" that props itself up like most lapdesks, but there's an elastic band across its platform that can be used to hold on to any laptop up to 17". You can also strap a textbook or two into this space as well if you're not working electronically. There's also an elastic band towards the top that can strap in three pens. When you're ready to move, a handle at the top curve will let you easily carry your lapdesk like its a shopping bag.
This setup is very convenient if you 1) use a lapdesk and 2) move around fairly often. It seems pretty ideal for students, although if you're just moving around your home it can be practical as well. That said, the Scribe has a few downsides. The wrist wrest can be a little obtrusive, making it easy enough to type but difficult to use the trackpad on some laptops. If the platform were less slippery and you could push the laptop higher up this wouldn't be an issue, but unfortunately that's not the case. That said, this tends to be less of a problem with unibody Mac laptops because of the lack of a trackpad button and the placement of the trackpad overall. Also, if you want to avoid slipping you can easily cut a little bit of a drawer liner to keep the laptop where you want it. You shouldn't have to do this, of course, but it's an option. If you need a lapdesk that can carry your stuff and you don't mind this issue, you should check out the Scribe over at Quirky.
Scribe | Quirky