A piece of clothing is fundamentally a tool. Definitions are important so everyone is on the same page. I feel like Wikipedia's first sentence on "tool" accurately describes it

Starting an article with a "proof by definition" does not make me feel overly positive by the article. Why is the definition of tool important? Do you think that before we saw that definition, we did not know that (a) clothes help us deal with environmental conditions or (b) clothes change the way some people perceive us?

Overall, I do not understand what this article is doing on Less Wrong. I'm pretty sure there are more effective ways, both time-wise and money-wise in order to dress better for whatever social goals one is trying to achieve -- for example, going to the high-end shops, asking for advice, but then utilizing that advice on Amazon and on sales, or asking a trusted authority "do these clothes convey the impression that I want?"

[And I'm pretty sure googling for "how to get cheaper clothing" finds way more options than what you listed...]

I think an article that can be summarized by "Clothing affect the way people perceive you. Dress for the perception you want, within your time/money allowances. Google and/or ask trusted friends for more specific advice as to which clothes achieve which impression." is a little bit...much for Less Wrong.