Pi-Hole converts a device on your network into a domain name service provider with a built-in blocklist. What this means is that once installed your entire network is filtered to remove trackers and ad's, which not only blocks advertisements but improves your internet speed, and reduces total network traffic (since the ads are no longer downloaded).
I installed Pi-Hole onto a 10 year old laptop i had lying around and followed the steps provided on their website. Total installation took around 20 minutes. Pi-Hole also has a comprehensive admin page to monitor your network (on my network pi-hole blocks around 20% of all queries on average). I highly recommend this software to anyone concerned about the amount of tracking and advertisements being sent over your home network.
Visit the Pi-Hole Website to get started