How much money should i bring to the outlets?

In the next few weeks we plan on making a shopping trip to the outlets in Gulf Port. I really want to get a few plain Ralph Lauren tee's and 2 pairs of shorts, navy and khaki. Also maybe a pair of sunglasses and a cute tank-top or 2 and some running shorts. I have $350 in my bank account and about $120 at home. How much should i bring with me?