Continuing on in my (and Lonely Planet’s) recommendations of some city freebies to make your travel dollar streeeeeetch: 4. Walking tour, Reykjavik, Iceland Despite the economic meltdown, this almost-Arctic island is still going to test your bank balance. So freebies here taste all the sweeter – and Goecco’s Reykjavik Free Tours are as unique and feisty as a shot of brennivin (the local firewater