Our kids think childproof locks are a joke. We have so many locks on the doors (we live on a busy corner) and they figured out how to just slide a chair up to the door and use the slide lock.
I moved anything dangerous up high. I have all sharp things in the kitchen in a canister up high as well. I have locked drawers for office supplies like stapler and scissors.
People come over and think my house is oddly empty, but they don't know what came before the oddly empty home.
People comments on "how does he know how to open that?!" and I'm thinking, "your kids don't do this?" My kids have asked people if they have any old engines they could have to use. My oldest keeps saying (He's 4), "All I want to do is figure out how everything works." It's true. Thankful for their curiosity, but exhausted.
Your child-proofing will continue for a while, just keeps evolving.