Meet the ZestDesk: a portable standing desk that lets you work while standing. It is designed to turn any table into a standing table. It is sturdy and lightweight. You can set it up in as few as 30 seconds. When you are done, you can fold it into a carrying case with a handle and take it with you everywhere you go. There is also a monitor stand available for the ZestDesk, so you can do more on it.
The ZestDesk is made for right-handed and left-handed folks. It is easy to carry around or set up and lets you work while standing. You can order yours on Kickstarter.