Next week we are going to Barcelona for a short vacation: 3 days!!!

Can you fabbers help me with what do I need to take this time and what to do there?

I am planning on taking a pair of knee length shorts , a dress(summery cotton kinds) and a skirt... Oh ya 3 toppers.I donot want to take whole lot of luggage as I want to shop there

Am I missing anything?

Also can you guys help me out with what do I buy from there?