A place where I write on scan receipts
In fact a portable scanner off this type can fit into your luggage quite easily, so you can definitely take it with you on business trips. Where portable scanners drop the ball a bit is with regard to the quality of the image. As useful and convenient as these devices are, they simply can't compare with larger models in terms of the clarity of the image. Nevertheless, they are sufficient for most casual uses, and their small size and portability makes up for any deficiency in image resolution. If you do want to get a better quality image, check for the dots per inch or dpi of the particular portable scanner that you are considering.