Plaza las Americas, is currently the largest such shopping mall in the Caribbean and offers a wide array of stores, eating facilities and a multi screen movie theater. Most major U.S. mainland and European mass retailers are located in the mall.
The Condado section of San Juan is home to fine designer stores such as Cartier, Gucci, Ferragamo, Mont Blanc and Dior.
You might want to check out the Belz Factory Outlets and Puerto Rico Premium Outlets Barceloneta. They house stores like Polo, Hilfiger, Banana Republic, Puma, Gap, PacSun, etc.
Most of the large cities on the island have a large regional mall with very familiar international stores.
There are plenty of ATM around the commonwealth. Most are linked to the Cirrus, Plus, American Express and Discover networks.
If you're looking for local crafts of all sorts, and want to pay less than in Old San Juan while getting to know the island, try going to town festivals. Artisans from around the island come to these festivals to sell their wares: from typical foods, candies, coffee and tobacco to clothing, accessories, paintings and home dÃ©cor. Some of these festivals are better than others, though: be sure to ask for recommendations. One of the most popular yet remote festivals is the "Festival de las Chinas" or Orange Festival in Las MarÃas.
Don't forget that Puerto Rico is a large rum-producing island. Hand made cigars can still be found in San Jaun, Old San Juan, and Puerta de Tierra. Also a wide variety of imported goods from all over the world are available. Local artesanÃas include wooden carvings, musical instruments, lace, ceramics, hammocks, masks and basket-work. Located in every busy city are gift shops with the typical tee-shirts, shot glasses, and other gifts that say Puerto Rico to bring home to friends and family. Make sure to visit the Distileria Serralles, the home of Don Q, one of the oldest rums made in Puerto Rico. You would not only enjoy tours of the process of making rum, but a little taste of the rum. They also have a museum and it is an enjoyable place for a warm afternoon in the Enchanted Island.