Back when I was a teenager who couldn't drive yet, it was so much easier to leave the house without a handbag. Now, with my cell phone which seems humongous (I have a droid in the otterbox), my wallet (which seems filled to the max with all these cards I have to carry around), and keys, things don't fit comfortably in my pockets. I can get my wallet easily in and out of my back pocket, but it's pretty hard to squeeze my cell phone in, and my keys just feel weird in my pocket. I'd usually actually rather carry more things with me, but they'd never fit in my pockets.
I think wearing your cell phone in a clip on your belt just looks ridiculous, but I never see men using a murse (unless they're very femme). What do you guys do with the stuff you carry around? If I was going to school, I could easily just put my stuff in my backpack; work, a briefcase; but you don't really carry that stuff for just a trip to the store or a stroll downtown.