It really depends how uncomfortable you are in the chair and how much you are willing to spend. If you really want to save a bit of money by just getting better padding, feel free to do so. Although padding a chair may not save you much money at all.
Ken needs to buy a new dining room chair, if two stores sell the same chair, he should look to buy the one at the lowest price.
Computer
buy a new one.
when you go into your home there should be an button that has a chair and in front a lamp click that and press buy new furniture
If you are looking for a chairmat to help protect the flooring under your chair, you should see staples.com for tips on choosing one for your needs. Chair mats can be bought on ebay or Amazon.com.
he should ask what the computer is going to be used for and what brand the custormer is interested in
Yes! Casters are an absolute must. Casters will make your office space much easier. If you buy a low-profile chair with no casters, then moving around your desk will pain since you'll have to bend or try to reach something without moving you chair. My point is that if you're going to buy a executive chair for your office, save up money enough to buy that swanky new chair with casters than a bad chair that will slow you down in your work.
43.17 (A+)
Depends on the type of chair. If the cushion is attached to the chair and can't be manually removed, then you'd need to buy an entirely new chair. If the cushion can be removed manually then you sure can buy a new cushion.
No, but you should turn off and unplug your computer before opening it for any reason.
a brand new decked you gaming computer for 3k
Compare the prices, quality, and return policies of each store before making a decision. Consider factors like delivery time and cost as well. Additionally, read customer reviews to get an idea of other people's experiences with the product and store.