On the Dirttime Forum, we had a discussion about "bug out bags" and what to carry if you ever had to evacuate your home. This topic resulted in many comments, and some controversy. Please check out the Forum at www.Dirttime.com, and also look at the commentary under Web Articles.
Again, everything you need is at home. Why wander the streets? BUT, if there is no choice, then you should carry what you know you'll need. But what do you need? There is no one answer, since your situation, location, time of year, and many other factors all come into play.
See what others say on the Dirttime Forum, and let me know if you have questions.