How to use your money in Finland! - Economy

I have learned after some time, that even though food is expensive in Finland you can manage to get food for some weeks with 25 eu or less. It might not be the best food but its not that bad, but you can have some good(not that fancy)meals if you buy some frozen rice, french fries, and either chicken(hornets/chicken wings) or sausages you will spend around 5 eu and you can have a good meal for some days with that. Also usually food in the universities or politechnics can be quite good and cheap, depending on the school at least here in Tornio is 2. 50 and you can have a really complete meal. Hope it helps any other suggestions are welcomed!:)