Nah, wifi is pretty good today. I just dont like the consumer devices like the router shown here. Recently redid my wireless and went with a non wifi router, a poe switch and a few access points, connected through ethernet. I wouldnt dream of going back to the conventional one wifi router. Still use wired for stationary devices I can reach with a cable though… TV, AV, consoles, PC are all wired.
Ultimate DRY: just keep refactoring the one method to accept hundreds of parameters and do everything.
Add two numbers? DoIt(1, 2);
Subtract? DoIt(null, null, 3, 1);
Etc.