Are you tired of your old office chair? Office chairs are some of the most complained about pieces of furniture, yet people have very little idea on how to go about replacing their worn out, uncomfortable, old office chairs. It is vital to invest wisely in the chair that you will be spending most of your work day sitting on. Nevertheless, before you hop in the car and bolt over to your nearest office supplies store, there are a few things to keep in mind. Remember that office supply stores have clerks – which are no substitute for professional evaluators. They will most likely have just as much knowledge as you do on the proper measurements, proportions and designs of office chairs for your particular body.  Clerks are also in the business of making their products look appealing to buy, even when these products may not necessarily be the correct chair for maximum ergonomic benefits. The best way to remedy this is to work with a third-party professional evaluator, who can help you pick the absolute best choice for your body type from a variety of different vendors. If you cannot acquire the services of a third-party evaluator, the next best thing would be for you to go to a reputable office furniture distributor and get physically measured for your chair before you purchase it. If your schedule or budget doesn’t allow for any of these things, at the very least, conduct a thorough trial of whichever chair you buy wherein you test a variety of different seating positions that you like to sit in and intensively scrutinize and inspect every last detail of the office chair before you buy it.