Well everytime summer rolls around I have a tendency to stick my PSK into my backpack. My EDC is hardcore enough to get me thru most of the NYC troubles. Even on the "bad day" I have:
2 pairs of latex gloves
Microtech Terzuola
Wave
Windmill Lighter
Arc 4 flashlight
My dog tags with orange photon freedom on them
My cell phone
2 wallets (shield and regular wallet)

Now on the good day I will have my FAK, digital camera and PDA. And good day means that I'm going further than my grocery store which is on the corner.

On top of that I always carry my backpack (small alice) that has a lot of other usefull stuff in there (serious Meds, rain jacket, water). Plus my books. Even when going to a friends house, study session or quick visit somewhere I will throw a pack into my car or carry it with me.

I wish I had a better luck with HAM radios because my work radio needs to get programed thru my computer and I only have frequencies I need. I had bad experiences with vx7 and vx5 and I kind of gave up on portable communications and stuck with countycomm radio.

I kind of kicked my PSK to the curb which I'm sorry to say. Most of the stuff in there is more of the wilderness oriented. Don't get me wrong during weekend trips, kayaking or any kind of training upstate I will take it with me but I don't see a point of lugging it around the city no more.