Chuckanut
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Depends on your life style. If jeans, t-shirt and a sweatshirt are fine, why get a dress shirt. OTOH, if you like to dress up some times, then get a dress shirt or two, a nice sport coat and a few pocket squares to add a dash of style. No reason to break the bank.