I've dealt with shipping things to/from Germany, Russia, and the U.K..
-A shipment to me from Germany had a normal shipping charge, but a month after my package came, I recieved a $30+ fee that had to be paid to customs. "Taxes & Duties" or something like that...
-I shipped something to Germany, and shipping was nearly $50. It was a small item and was less that 1/4lb.
-A package coming to me from Russia was held up in customs and it took me about 2-3 months to get the package.
-A package coming from the U.K. not only had a $50+ shipping charge, but I was hit (again) with a "Taxes & Duties" charge of $30+.
These situations were not the end of the world, but they were not something I was expecting to happen. It was mainly an inconvenience.