About sales tax for purchases to Texas addresses

Well for the Texans here, sales tax is a bit of a problem.  The hosting system does not support the local sales tax system used in Texas.

To allow online purchase, I have set the tax rate at 8.25 percent which is the maximum in order to collect enough tax.  Trouble is that there are many that may not owe the full 8.25 percent.  If your area has the tax set to the 8.25% rate, and many if not most do, you are set.
If you live in an area that does not have the maximum 8.25%, and want to buy online, here is what to do.  Go ahead and make the purchase at 8.25%.  Then drop me an email referencing the purchase, your address, and your local percentage.  I can then verify the information and then process the proper refund. 
Otherwise send me an email with what images you would like, your address and tax rate, and I can create an invoice for you.  Unfortunately at this time that can not be automated so the immediate download is not available with this method, but I will do my best to see that its processed in a timely manner.
If you have further questions, drop me a note.