Security devices, even cheaper ones, still cost money. Realistically, you might not be able to afford all the protections that you wish to buy. It then becomes a matter of selecting what your highest priorities are at the best price point. However, you have an additional home security option that costs you nothing at all in terms of currency. Establishing a neighborhood watch or improving an existing one requires a lot of time and diligence. However, the results make your neighborhood safer with little out-of-pocket expense.