Standing desks allow you to sit or stand as convenient.
They are particularly useful in a business or public area when used with a docking station. This allows users to be both 'in business' and comfortable quickly and efficiently. These are full desks; the whole thing goes up and down as required, so papers and files and your coffee all go up and down with the keyboard and monitor.
They tend to be more expensive than other options but considering how much time you spend at a desk ... buy a full size adjustable stading desk with a motorized lifting mechanism ... your pocket book may suffer at first but you will never regret the purchase.