Also PiHole is a great tool. I suggest it it you Walt a very good ads shield :)
Simply blocking pagead2.google.com and googlesyndicate.com will remove 50%+ of website advertising. ReGex rules allow for ads.* (etc.), and these rules apply on your entire local network. For an added bonus, you can then use your local PiHole to resolve DNS queries remotely (e.g. from your phone) — just all around an incredible product!
/r/PiHole
Probably not as cheap as a Pi, but more beneficial. blah blah. decisions! yay!