1. Currency exchange should be done in special exchange offices and banks. The majority of exchange offices do not work on Sundays, but big banks serve their customers every day.
2. The majority of museums and other cultural institutions are closed on Mondays and Tuesdays. It’s recommended to specify working hours before making the planned trip.
3. leaving tips in cafes and restaurants is not obligatory, but highly recommended. An average amount of tips is approximately 5 - 10% of the total bill. Some reputable institutions may include service charges in the total bill.
4. Tourists, who make purchases in shops marked with the sign «Global Refund TAX FREE SHOPPING», will be able to ask the seller to give them a special check, and later use it to return the tax with its help. 
Estonia: travelling advices
8. In order to save money, it is worth choosing an inexpensive hotel in the sleeping area, a camp or farm for a stay. It is also important to inquire whether breakfast and bed sheets are offered. 9. It is best to move from one city to another by bus. It is also quite cheap to travel by taxi. If you plan to actively use public transport, then it is worth buying a travel card.
10. You would need an international driver’s license and a road insurance document if you wish to drive yourself in Estonia. In large cities and historic centers, you have to pay for parking.
11. It is strictly prohibited to smoke in public places such as stations, underground passages and catering establishments. The fine for smoking in an unintended place is 80 euros. … Open
