Before you tear into a repair job, start by checking for the simplest cause instead of assuming the worst. For example, before replacing fuses or breakers, first check for burned-out bulbs. If a faucet is working poorly, check for debris lodged in the faucet's aerator before tearing the faucet apart. Likewise, first make sure equipment and appliances are plugged in. By checking for the simple causes when a problem occurs you can save yourself from wasting time, effort and money in making unnecessary repairs.