I think its something only girls do because all the guys I knew had no problems re-using the clothes from the previous year and only replacing what needed to be replaced because it was ruined. For "back to school" in the summer when I was in school I would maybe get 2 new pairs of jeans and 4 more shirts.
ya ummm a cost conscious person can completely redo most of their clothes for like...2-300 that's shoes too lol. I got a pair of jeans, and 5 shirts for 57 dollars a little while ago lol, all name brand stuff.
I did that in my early teens, loved something different for the start of the year. Now actually I didn't go shopping this year because I don't have enough money since I need to pay for studies (I earn it myself), so it is kind of dumb to go and blew it on clothes very often, but I do have good stuff in my closet. I do like to buy bags or watches, it is my weakness but not clothes overall, I like to keep good designer T-Shirts and wear them till they die XD