A lot of times homeowners shy away from purchasing something that needs to be installed just because they don't want to pay someone a fortune to do the job. With this in mind, companies have designed many things to be simple enough for a do-it-yourselfer. Let's say you want a home security system without the cost of installation. You'll be able to find models that were created just for people like you. With step-by-step instructions, all the necessary hardware, and a little common sense, you should be able to install a system in your home in less than a day.