Mom Life with Adrienne

Aubriella recently has learned how to turn the lights on and off by switching the switch up or down. She hasn't mastered the switches that go sideways yet. I know that will come in due time. So anytime we leave or enter a room she wants to be the one to flip the switch.
Aubriella also likes to rearrange the dining room table chairs. She will push them away from the table, move them into the living room, or use them to get to grandpa's computer.
Now put the two of those together and you get a wild child who will push the chair over to the wall to flip the light switches on and off. It is easy entertainment but also scares the crap out of me that she is gonna fall off the chair.
What am I gonna do with my wild child. I need  a way to child proof that stops her.