Having a notebook might make you think that you are now free to  work wherever you choose but the reality is rather different.

Choosing a notebook with a reasonable screen area means taking a hit on weight, and probably heat too.

One solution is buy a lap rest such as the amps LapGard (video review here) but that only solves heat not weight, and the sofa has ergonomic problems of it's own.

The CI desk is an interesting alternative. On wheels and with plenty of storage it makes a convenient desk for those short on space.

The snag, the company behind this is based in Austria but hopefully it will appear over here soon.