The guys at Pi-hole have created an awesome little project that will do network-wide DNS ad blocking. No more ads, and no more installing adblock at home. The best part is that it forwards DNS to your local DNS server, so your local DNS stays in place unaffected. It's easy- just fire up a raspberry pi with raspbian or load it to a VM. The footprint is incredibly small- I gave it 1 CPU and 512MB memory and it hasn't affected my internet connection speed at all. I could post screenshots or code on how to install and configure, but everything is so straightforward already if you have five minutes available and some networking know-how, do this.