I see you've gotten several answers. We've discussed the "Urban" PSK here at least a couple of times, and it's a particular interest of mine, but my criteria are quite different- no kids, and my kits are much more slanted toward getting me personally through an urban emergency than toward first aid.<br><br>I'd second the suggestions for more money, a whistle, and some sort of light. The phone card is a good idea, but all you really need are the numbers, and a small piece of paper can carry those for a lot less bulk... I'd suggest combining that with all the friend and emergency (and taxicab company) numbers you can think of to add.<br><br>Depending on where you are and what the environment is like, I'd suggest a tiny radio of some sort (at least FM). There are few things more frustrating than not knowing the source of a disruption, or which way to go to get away from it and toward safety. I also tend to think a tiny compass is useful in the city (I get turned around in a city much more easily than in the wilderness) and maps are worth considering. Safety pins, nylon wire bundlers, and needle and thread (I include a needle threader- my sight is not what it used to be, close up, and it's flat, tiny and cheap) can be very useful and take up little space. Fires are of limited use in an urban area, but a mini-Bic lighter might be worth it's weight.<br><br>