Plastic clothes hangers prevent door slamming
More low-tech babyproofing, this time from Erika:
Our kids - 3yrs and 16 months - love to slam and close doors. This often was resulting in pinching, banging and little ones locked in rooms they didn't want to be in. While we try to stop this a lot of times, it's not always preventable, so we figured out that if you put a plastic clothes hanger over the corner of your door, PRESTO, the kids can't close the door all the way but still have the satisfaction of closing it enough.