Second baby.

I'm currently 17 weeks pregnant with my second baby. I've always heard about (and planned on doing it) people getting a little present for the older sibling when they come to meet the baby. 
But, my first child will only be right at 19 months old when the baby is born. 
Do you think the gift thing is something that's still important with the older sibling being so young? 
(Any other tips on how to prepare a young child for a new baby would be appreciated!)