Students usually announce in the e-mail list or the forum their flight day and time so if there is someone who has approximately (more or less) the same flight time of the same day can leave together to the airport by a shared taxi. The taxi to the airport costs approximately 35€ so this can be divided over the transported passengers. Do not forget to announce your flight in the e-mail list to get an advantage of this nice service
Return your travel card to the office of Tampere City Transport, Frenckellinaukio 2 B. The office is open Mon-Fri 8:30-18:00, Sat 10:00-15:00. You will get your deposit back. If you still have some money on your card, you will get it back minus 5 euros of service fee which means if you have less than 5 euros you won't get anything back. They do not charge service fee from the deposit, so in any case you will get it back.
This is very IMPORTANT: take with you the card voucher which you received when you obtained the travel card. Otherwise, they do not take your card back!!