About 30 minutes driving you find the Palma Real shopping mall. Good branded shopping and some nice terraces to sit down and have a drink. You find the Hard Rock cafe there as well as Tony roma's, Pizzarelli, guess, Diesel etc. The mall offers a free shuttle to and from most of the hotels.
There is also Plaza Bavaro and Plaza Punta cana where you can shop for souvenirs. You can take a taxi for approx. US$15 one way.
Mandy