How to get around Vienna for 1 Euro

Today we experienced the cheapest way to get around Vienna (without hurting feet): the Citybike. All you need is a credit card. You have to register and pay 1 euro once, then you can basically bike for free, provided you don’t keep the same bike for more than one hour (the first hour being free). A lot of nice and secure bike paths, pretty well signposted, combined with a (free) bike map we picked up at a bicycle lobby event in town, was the perfect way to explore the city and at the same time enjoy the perfect spring weather we’re having here.
Just perfect for us (who still think cars should not be necessary for anyone).