Sometimes I'll toss a Zippo lighter in there if I'm going out drinking or something. Otherwise, it's unused. My pockets only have my wallet (which has its own change purse), my phone, and a handkerchief (living in hot and humid areas means lots of sweat wiping). Keys get clipped to a belt loop. I'm generally not carrying anything else and it will likely end up in a bag of some sort if I am (especially when I lived down in Tokyo and was away from home generally unless sleeping and was taking public transit).