Who do you buy your race parts from

When racing I was running two cars, ordered lots of parts from lots of people, sometimes without even having time to shop around for the best prices BUT if you are like me and trying to save from having to pay taxes via buying online make sure whom ever doesnt have a warehouse in your State, if they do then you gonna be paying tax. Another thing to watch for is when placing an order for lots of stuff from same place make sure they have it all in stock in one location, Summit shipped me an order from two diff locations one time=had to pay shipping X2.