Move often...
Here is a lady who lives by the laws of movement. There is an array of useful information on her website about how to encourage movement in the home; at work; and with the family.
With all the hype about sitting being bad for you and standing desks now being all the craze I have always been a promoter of moving often, standing all day is as bad for you as sitting all day is. However, if you choose to adopt different postures throughout your work day and add in some useful stretches/movements scattered around, then you are certainly on the right movement road.