I've been taking DS to baby time at our library since he was about 6 months. I've always found it great, but must admit recently it has been getting a bit more challenge. They insist that you keep your child with you (pretty much on you lap) which I'm finding more and more tricky with an adventurous toddler... Ours is really popular and they usually have between 30 and 50 LO's there, so you can understand why, but it is still pretty challenging at the moment. When he was younger, he'd happily sit on my lap and loved the songs and puppets though, so you might find that your DD2 gets more out of it that DD1. But, either way it is a good opportunity to get out of the house and do something a bit different and it costs nothing. I'd give it a go and see how you go...