Baby proofing woes

When we first moved into this apartment (baby free) one of the first things would comment on was the great open lay out. "I know, I love it!" I would reply. Well then next person who says that to me will get a completely different answer!

We used to use a pack and play and a strategically placed chair to keep the babies in the living room. They learned how to escape. So we then used the pack and play and chair and a tub under the kitchen table to just keep them out of the kitchen. They learned to get through anyway. There is no good way to keep these babies in one area! And with so much space they can each get into trouble with quite a distance between them. I never thought baby proofing we be so involved. I thought I would put the things in the plugs and on the dangerous cabinets and hide the computer and be done with it. HA! And seriously why does the oven not have a lock to keep it shut if babies are in the kitchen while you are making dinner? Nothing happened and I don't let them near the stove of course, but it does make me nervous. I can't be the only person who thinks that should be necessary! So I'm up for any pointers and tips on baby proofing because I am at a loss. And after the marathon that was today, I need to figure something out!