Pro-tip, see if Amazon fulfills a desired product for a third party merchant. If you don't buy directly from Amazon, but they still fulfill logistics for the third party, you can get an item shipped via prime without sales tax if the third party is located outside Texas.

Note: I'm also a Texan who hasn't decreased his Amazon spend since sales tax started, if anything I've increased my Amazon spend over the last few quarters.

This is Amazons sneaky way of getting around the sales tax issue. Have the exact same item available at the exact same price from a third party.

This way they can build local fulfillment centers (which force them to collect sales tax), and yet not actually have to charge it.

It doesn't work for every item, but it does for quite a few of them.