It's clear that I'm going to need a backup source of power since this is the third time power has gone out for more than a few seconds since I moved in at the end of January. I don't have a lot of money to spare right now so if someone could recommend one that won't decimate my bank account while also doing its job to keep the essentials on my tank going that'd be great. It's estimated my power will be out for another hour. What can I do in the meantime?