My drawings just arrived safely home from Denver by UPS. I had to pay an import charge: $139.71, which breaks down to $78.07 GST on the insured value of the work, plus a brokerage fee and GST on that. As far as I know, it didn't get taxed going the other way. I told the UPS man this was my own original artwork returning from a gallery show, and he phoned the broker but to no avail. I'm new at this. Does anyone know how to avoid this, in case I send artwork across the border again?