I have two girls - 1 and 3. My 3 year old is CONSTANTLY taking toys that the 1 year old is playing happily with and taking off with them. She then will either hoard them, play with them, or hide them. This is making me insane. I moved a laundry basket the other day and found an infant stacking toy behind it. I feel like it's just mean, because she is just taking it away to hide it?

My littlest doesn't get upset but it makes me sad to watch her just watch the toy disappear. I obviously address it with the oldest, tell her not to and explain why, and intervene if I'm right there but it's getting ridiculous. If she continues or is rude about it she goes in time out.

Aside from constant repeat myself and time outs, any other tips?