So I have made the transition to staying at home full time as a freelance writer while learning affiliate marketing on the side. I have found that sitting on my arm chair or at my desk with standard a kitchen chair makes me ache quite bad after a few hours, sometimes I need to do 10+ hours/day .. So since this is now my career, I can justify buying an ergonomic comfyasfuck office/executive chair.. I am looking for something that will also prevent me from any injuries that are associated with excessive office and computer work! can any of you recommend some good chairs? what do you use?