Taking care of minor electrical issues in your house can often be done safely and effectively by yourself. Before you begin any repairs, always remember to switch off the power at the main panel.
Some common wiring https://lh3.googleusercontent.com/p/AF1QipNkwqydSoIHr75OrUhuHBzYVF4CKH4OU7xmxzv6=s1360-w1360-h1020