Copenhagen isn't cheap, but hostels in Copenhagen tend to be a cut above those in other cities. Many hostel rooms have private bathrooms. Fees for linen add to the price, however. Everything is expensive here, except wandering around the beautiful parks and streets, and perhaps cigarettes. Buy beer in supermarkets or get it for free at brewery tastings. Seek out student haunts or purchase open sandwiches from the bakers or sandwich shops for relatively cheap eats. Public transportation is efficient, but the mighty bike is king in this flat country. You can even rent one for free through the "Bycyklen Kobenhavn" program, as long as you don't leave the city center.