I also found it depended on the child. My SIL had to pack away all her books within the bookcase (coz bubs would tear them off the shelf), ALL ornaments, photoframes within arms reach she had to put away, every cupboard in the house had those baby proof locks on, all powerpoints had those plastic covers.....i did nothing. I found my girls werent interested in the book shelf, or the DVD buttons or the kitchen cupboards. I dont know why. But i didnt have to 'childproof' much at all. Like i said, i have found it depends really on the child.....
PS: I dont know a child/baby that hasnt at one stage picked up a remote control (tv/DVD/Aircon)....
I tend to agree with this.
We were in the "pack away everything and nail it all down" category, our dd did (and still does) get into absolutely everything and no amount of NO or time out makes a lick of difference. She's a VERY curious child and even though she knows she's not supposed to she absolutely cannot help herself when something catches her attention.
We really had to childproof well for our own sanity as well because we found ourselves screaming at her all day long not to touch/get out of the fridge/cupboard/don't climb up there...it just was not the way we wanted to spend the next two years LOL.

So we have power point things, latches on all cupboards and drawers, and on the fridge and pantry, the bookshelves are cleared on the lower shelves and now have her toys in them,, we also have door handle covers that keep her out of our office and upstairs bathroom. Our house is fort knox LOL.