What are some “must do’s” for securing my home…

Hello all, I like to make sure my computers and network are as secure as possible. I currently have an Asus RT-N66U router. I am looking for some basic but effective ways to ensure my home network is as secure as possible. I am already using WPA2 with complex passwords for my 2.4 ghz and 5 ghz networks. WPS has been disabled too. What are some other good things to do to increase my network security? Thanks

Found here