United States
Texas Tax Back offers foreign shoppers to get back local sales tax. You'll need to do this at their office in the Galleria Mall in downtown Houston. Bring along the merchandise, receipts, passport, and travel details and they'll process the refund to your credit card. Only receipts with a sales tax of over $10 are valid (although you can combine receipts for the same store to get past this limit) and you must pay with a credit card registered to your name. The rate at present is 8% so if you have stocked up on presents the savings can be sizeable. There are also two offices in San Antonio.