Babyproofing

What did you do for baby-proofing? I am CLUELESS about baby-proofing! I think I do one thing right and he finds another thing to pull on or play with! I never thought the day would come this soon but I’m beginning to learn you cant have enough baby proofing items. I know a lot of kids climb out of their cribs but is there anyway to prevent it? His crib is lowered and he still is trying to climb out and one of these days he’s going to get it. I’m considering buying a “crib tent” that goes up over the crib so they cant climb out but I’m not sure how they work and how you even put the baby IN the crib with that thing up! So please please pleaseeeeee share stories, thoughts and advice because the last thing I want is for him to climb out and get hurt!