Wool socks are recommended for hiking

Dictionary book or app for your destination.

Rent a car with insurance in destination.

Get a guidebook about your destination and make a list of places you want to visit

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Make sure you know about important local laws, customs and traditions.

Note the address/contact details of the nearest embassy or consulate of your country in the destination area.

In some places is windbreaker recommended. It resists wind and light rain

A Quick-Drying Travel Towel is very important for travellers. Travel towels are smaller than general towels.