Your chair is the most important piece of office furniture you have as a webmaster who spends several hours a day in front of your computer ...
Features to look for are full high back, that will support your entire back and neck, as well as what they call a "waterfall" seat cushion ... meaning that the shape of the seat cushion is such that will promote proper circulation in your legs.
You do not need to go out and spend 1000$ on a chair, but you should invest in more than a Staples $59 steno chair too ... just my
