I've talked to several guy friends about shopping. It amazed me to hear they rarely try things on. They know their size, they grab several in different colors, and out the door they go.
I'd love it if I could shop that way. I hate the hassle of trying things on. It just doesn't happen that way with girls though. We come in all different sizes... tall, short, skinny, curvy, round, pear-shaped, etc. I was walking around the mall yesterday and saw some really cute things on the display. And then I tried them on and thought, "MAN, that's ugly on me." Probably just as well because I really shouldn't be buying any more clothes.
People might complain girls shop too much. But that's because most of the time I go, I come back emptihanded. I never seem to find something that fits/looks right when I go. So really, I shop, but don't buy... I guess you can look at it as a form of exercise. It's hard work trying things on at every store.