One of your concerns and reasons to prep could be due to the threat of the power grid going out, whether by way of a nuclear device taking out the grid or even a solar flare. One easy thing you can do to protect some important devices, like a hearing aid, gps device, maybe some handheld radios, is build a faraday cage. A faraday cage is basically a shield from an electromagnetic pulse (EMP). By doing a simple internet search, you can find anything from simple faraday cages to elaborate ones.
So there you go, for probably 50 or so bucks, you can have your own EMP protected storage container for all your important electrical devices. Moreover, trash cans offer a decent amount of space, ensuring you can fit all your needed devices.