Master your own home network. If you haven't touched your router or residential gateway since it was setup by Comcast or AT&T - your home network is not secure, and your WiFi speeds are probably not reaching their full potential. Did you know most leased routers have major security flaws built-in?Don't wait to patch up those security flaws!
With all of my work - I prefer not to just come in and fix things and then leave. I want you to have a better understanding of your own network so you're confident in your home's security and you're getting technology to work better for you, not against you. Be the master of your domain in every sense of the phrase!