Cat proofing a home?

[NightskyeB4Dawn]

Hi all.
So my son wants a cat , very badly. I love cats too (would rather have ratties ) so have reluctantly agreed.
My concern is how to cat proof everything?! It feels overwhelming, like I would have to pay for an expert to come in and help.

I'm thinking I need at least oven knob covers, outlegs plugs, protective wire covers (braided sleeves) . 
What else , and how in the world am I going to cover every single wire in my house?! 

Help!

I have had pets my whole life. Dogs, cats, every kind of farm animal. I have never had to animal proof my house.

There are places I don't want them to go, like the kitchen, so I train them not to go there.

Animals are smarter than most people give them credit for. So they train us instead of we training them.

My pack give themselves away every day, because they are pros at playing my Mom. They pretend they are deaf when she tells them to do something. All I have to do is look at them or clear my throat, then they run like crazy to do what she told them to do.

Be patient and loving. Their general nature is to please you. Training them is easy.