Getting around Tallinn
Above: Wham bam, thank you tram!
Below: Pedal power
Taxi drivers are notorious over the world for trying to scam naive tourists with extortionate rates, and Tallinn isn't any different. Follow the usual caveats: only take a licensed taxi from a rank or established company, check the driver has an operator's card (a white plastic card with the driver's photo, on the dashboard) and always insist on using the meter. If you're feeling confident insist on a printed receipt - if the driver can't issue you with one, legally you have the right to refuse the fare!
The advantages of travelling by car are obvious - door to door service and plenty of opportunities for daytripping. Disadvantages include some slightly substandard roads, some very substandard drivers and even the odd moose straying into your path. But as long as you drive defensively and are prepared to do a bit of herbivore dodging you should get by. Parking can also be a bit of a mare if you want to get anywhere near the Old Town, and even during the day you are required to have (dipped) headlights turned on.
By public transportation
Using the Tallinn public transport system is fairly easy for the most part. Buses, trolleybuses and trams all use the same type of ticket, which can be bought at any kiosk for 10 EEK (or 85 for a book of ten). You can also buy a ticket from the driver, but you'll be charged an extra 5 EEK for the privilege. Stamp your ticket in the machine straightaway or you're effectively riding without one. Inspectors are rare but the 600 EEK fine could seriously dent your beer budget.