When we visited Canada we were able to reclaim tax that we had paid on goods etc, as visitors to the UK can with VAT, can you do this in the USA? anything to save a few pounds for the next visit!
Sales tax paid in the states is not refundable,The US treasury does
not collect the sales tax,this is collected by each county,this is the
reason that tax is lower in Orange,than Oscela counties.
It's not the same thing, but a lot of department stores - eg Macy's - do have a tourist discount card scheme. If you go to Customer Services with your passport, they will give you a card that gets you 11% (not sure why) off any purchase.