I got a notebook stand a couple years ago, which turned out to also be a cheap and quick way to effectively turn an ordinary desk into a standing desk.
I’m not sure how well standing still for hours on end would work as exercise, but switching a few times a day between standing to work at the notebook computer and sitting to work at the workstation next to it is nice.
DIY standing desk for under $30
This cheap futon turned out surprisingly good, but bed preferences vary a lot of course.
I got a notebook stand a couple years ago, which turned out to also be a cheap and quick way to effectively turn an ordinary desk into a standing desk.
I’m not sure how well standing still for hours on end would work as exercise, but switching a few times a day between standing to work at the notebook computer and sitting to work at the workstation next to it is nice.
I would second that futon