Its funny how little US citizens know about this, meanwhile in the rest of the world we have been paying import duties our entire lives. When an item is posted abroad forms have to be filled detailing the sender, the nature of the goods and the value. Some sellers willl bend the law for you and decalre the value of the goods to be lower than what you actually paid if you ask nicely. The main danger being that if the parcel is lost the sender will lose out on any insurance claim.

The other option is to prepay tarrifs during the purchase of an item. Fedex and DHL usually offer this service which includes epedited customs clearance.

> Its funny how little US citizens know about this

Is it really? It sounds like you're implying it's some kind of woeful ignorance, but I say it's perfectly reasonable:

1. Each US state is already in a open-borders zero-tariff framework with all other states, which covers a very large portion of what people purchase.

2. Until recently, most individual consumers didn't need to think about tariffs on international goods, since most purchases were <$800 and covered by the de minimis rule. (Which AFAICT was in place for ~80 years.)

I would have just been happy if the declared value was what I paid, instead of almost double.