You still have a bit of time up your sleeve (not long though LOL) when they start crawling as they are a bit hopeless at it at first so they aren't zooming off all over the place and into everything until they are a bit better at it. As time goes on though the height of the childproofing goes up - once you get the floor level stuff done, then its knee level because they are starting to reach higher, then they pull themselves up on stuff, so you can't get all of it at once and some babies aren't that bothered by the stuff they shouldn't have but you do it as you go. I remember fishing a dead spider out of Erin's mouth once - grossest thing she's ever done I think, but I swear I could vacuum twice a day and she would still find things to eat.