Hi W.. I have 2 daughters, 20 months apart. Now 17 and 16 years old. What I wanted most when I was pregnant with my second child was help with the first. lol My first helped alot with the new baby, and I think alot of that had to do with my mother. She told my 1 year old that the baby in my belly wasnt my baby, it was hers, so she had to help me to take care of her baby. And she did, and still does!! They have grown up as best friends, only in the past couple years they have started with sibling rivalry, but not nearly as bad as I have seen with other siblings.(just small arguments)
New clothes or maybe something they didnt have the first time around. Is there anything you can think of that you may have missed with your first?? or perhaps a double stroller,or a snugly (body carrier) depending on how old the first child is.? Diapers, baby wipes, new bottles, bottle brushes, new crib sheets, and bath towels, even diaper bags (they wear out also). These things are usually welcome, same as with the first child. Some things just need to be replaced with the second child!
Dont forget maybe something for the first child, so he/she doesn't feel left out when the new baby comes.
It's all about the care of the new baby, but the feelings of the first!!
good luck!