We received an order from New Hampshire this morning. In the PayPal note, our customer kindly noted that New Hampshire doesn't charge sales tax. I had set up our store to charge a flat 7.75% California sales tax on all orders based upon my interpretation of this state publication, Are Your Internet Sales Taxable?. But after further research, I realized I only need to charge sales tax to customers in California. So I have now fixed this-- now only orders shipped to California addresses will be charged sales tax. All other orders won't include sales tax. If you have any problems, please let me know.