T-shirt marketing has been around for years. I’m not sure who started it, probably someone who loved making people smile. Any way, what we wear has changed so much over the years. Clothing can affect the way you think(peoples’ perception of you changes), from the psychology of social signalling and Status Anxiety, to understanding that most of what we do is centred around attracting the opposite sex (see the book Spent for a fascinating look into this theory).
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