Toddler proofing room

Br

Ok, so I know I'm not quite there yet but it's been on my mind for awhile.

How do you toddler proof a room so they can play and be safe and for when they transition to a toddler bed that they can get out of?

I have a sound machine, monitor, fan/heater and a humidifier all plugged in. I teach her not to touch the cords and she's pretty good with leaving them alone but I don't think I could trust her alone with them without pulling them down.