My strategy for helping my 6.5 year old?
HELP him.
He's been helping me put toys away since he was little. It was just part of our day. So, when he's having a hard time managing what's in his room, I help him. We do a big clean-out, and I ask him to really think about what he wants to play with, what's important. We look to see how those items fit, and where, and what's workable for him. (Maybe he's using marbles, stones, and small plastic animals together, so we get one box to put them all together for a while instead of expecting him to sort out those items.)
Within this process, he gets to choose, then we store what's left over, what he's not playing with. Toys that get relegated to storage, are offered and repeatedly declined-- after a while, he might choose to sell them at a garage sale or we donate them or pass them along to a friend. This allows him to have more control over what happens to his own belongings and gives him a chance to enjoy giving to his younger friends-- he really likes this.
When toys aren't picked up repeatedly and it IS manageable, then it's "I need you to have your floor picked up and toys put away before we have tv/media time" and then I follow through and check that it's done. Once again, the consequence of it is on him. If he wants to leave his room a mess (the only thing I require is a path to the door) then that's fine, but his other privileges are suspended until it's tidied up.
Throwing away toys seems to be indicative of a parent with a low level of discipline skills or coping resources. Doing it to a two year old? What the hell is wrong with that woman? The fact that she was bragging about it? Yeah, great, you really showed your two year old who's boss?! No, you're just showing the world that even ignorant, mean people can have babies.
@Mira: funny-- I thought the Chipmunks Christmas music and dental drills were the same thing--- shrill and painful.;)