There are several ways to get to Europe. Of course, the most common is the flight, especially if the ticket was bought for any special action by the airlines. So you can save a lot of, but this method has a disadvantage for those who are not accustomed to plan trips in advance - purchase tickets at special shares will have a few months before the trip. You can go to Europe by train or your own car. And you can fly to any European city, flight to which costs little money, and then rent a car and explore the cities of Europe, making stops where you want to stop.
The next question, which should take care when buying tickets to Europe - this accommodation. There are several ways to find it in another country. For example, to book a hotel (now it is very easy to do online, pre-reading reviews about the hotel and seeing the pictures). And you can pre-register at one of the sites for the exchange of shelter and go to visit someone from locals who not only provide you with room to accommodate free, but also will walk with you through the city, and information on local attractions.
The main advantage of independent travel to Europe is that you can do what you want, stay where you like, as much as you'd like. In addition, independent travel will save you a considerable amount of money on the trip, but the rest are not worse, and possibly better than if you take the tour. Relax the mind!