You realize you were legally required to pay tax on all that stuff the whole time, right?
http://www.tax.virginia.gov/site.cfm?alias=ConsumersUseTax
The only thing new is amazon will be directly billing you instead of you having to pay it on your own to avoid breaking the law.
Yeah but it isn't like there is a department of the government specifically intended to find people who mispay on taxes! So we got no worries!