Don't forget too, that you need extra yarn when you're making your patterns match.
Like for a regular sweater I'd go with 2 balls, then start them the same place and alternate each skein on the rows so that the thickness of the pattern in the yarn matched up.
I'm thinking of frogging the "forever sweater" (aka "bernat baby jaquards kimono") simply because I'm bored with it and while cute, I don't know a baby that it'd fit. what i'm thinking of doing is making their baby hoodie (the one that zips up the front) and using a solid color for the front and back, then the jaquards for the sleaves.... but we'll see... I have the "lemon pie" colorway and love it