Might your issue with WIFI be specific to your setup than a problem with WIFI itself? I replied to your comment yesterday, but just how noisy can WIFI get anyway? There's a finite number of people who can live within 50 metres of our homes. So there's a limit to how noisy it can be. I'm saying this because I have no issues with WIFI in a cluttered inner-city suburb full of WIFI. I just got myself a good WIFI modem router, and it's smooth and no drop-outs for multiple users in the house. Nobody expects super reliable HD video to stream through without ever glitching, but it actually does a good job of that anyway using Netflix, Youtube, and Chromecast and other methods like iPads.

I would suggest getting a better router, and making sure other factors are set correctly to maximise signal strength rather than blaming WIFI. Location of the router, whether you use a range extender and so on.