Take note that some of these tips are either not considered good practice or even harmful depending on your locale.
E.g., the data protection standards in the EU are so high, that there's no need to worry about DNS or ISP snooping for advertisements/tracking. This makes using a VPN or using a different DNS less useful. I might even go so far and call it harmful, because you're introducing a party that you don't have such a strong contract with.