We bought DS1 a present from DS2 when he was born and DS1 arrived to visit him in the hospital. We did the same for DS1 and DS2 when DD was born and it certainly helped make it a more positive experience .

We still found DS1 struggled for a while when his little bro arrived, but he was 3 by then and was used to being the centre of attention. He got there eventually. Both boys handled it fine when DD arrived.