and customers' tax evasion is not Amazon's responsibility, under current law in most states.

Am I the only person in existence that does? My state offers a table that estimates your use tax due based on income. I've always used that.

I do as well. And I actually look through my bank records to make a reasonable estimate of how much I've bought online to get the number as good as I can without having to actually track everything all year.

My businesses do. Since we have to keep all the records for the Feds. Here in Washington it is nice to have Amazon collecting the sales tax. It leaves less use tax paper work for us.