Flatbush, I don’t really agree that clothes make the man.
I think for Shabbos you should dress extra special. If my son wears jeans a tshirts during the week, but wears nice khakis for Shabbos (that he reserves for Shabbos), whats the problem? Its all about wearing something l’kavod Shabbos.
Ames, did you ever have a uniform? I did in elementary school and I really didnt mind. In HS I didnt but I sort of created by own by wearing the same thing every day LOL.