Consider how long you will be gone and what climates and temperature extremes you might experience. It makes more sense to buy a thick parka in Norway because you have wound up there in November and plan to stay through the winter, then to have lugged one with you all over Continental Europe during the summer on the off chance you might end up passing your winter somewhere in Scandinavia. Soap is readily found, but it doesn't hurt to carry a small bar with you. You also will want to bring some Wash N' Drys for those times you can't get to a sink to wash your hands, as well as a reserve roll of toilet paper. Jewelry Leave it at home.
Jewelry is a sign of wealth and an open invitation for crooks.
Many plugs in foreign countries and their outlets are very different.