Have you ever been awoken in the middle of the night by a mysterious noise? Perhaps you thought in that moment that it would be great to have a home security system of some sort. Unfortunately most home security systems can cost a pretty penny. So what is the cautious home owner to do? Well, thankfully there are lots of very simple and inexpensive home security gadgets out there that can help keep your home secure without spending a lot of cash. Here are some of our favorite budget friendly home security gadgets so that you can rest easy.