If you like Ferrari then don´t miss their shop.
What to buy: We bought a sweater and a pair of pants for our son (4 months old). Realy expensive 88 Euro but it was realy good quality.
I recommend the store take a look.
Clo by Clayeax is a children's boutique.
I cannot recall the name of this street, but it was the street that is first left once you leave the Vatican Museums, walk downhill, follow the road to the right and then this road is first left. There were quite a few boutiques there, and my sister-in-law wanted to get something for the little one.
It sold all types of clothes, was really sweet and if money were no object, I would've bought a few things!
What to pay: It was VERY expensive, so even though we had British Pounds to spend, we declined to but anything from here.
This is a very nice shop, located near the Spanish Steps.You get very good quality and good value for money.They do also have another 2 shops in town.
What to buy: They have casual and elegant stuff available, including accessories like gloves and scarfs.
Childrens's shoe store. I found a great pair of platinum metallic leather maryjanes on sale here. I was in Rome in November, so there were some good deals.
What to pay: 29 Euro was a great deal for shoes that regularly sold for 55 Euro.
My brother, being a soccer/football fan, bought himself an Italia t-shirt... and of course, he got a matching one for his little girl.