Cheap Hostels in Frankfurt - Book online for discounts
If you are looking to stay in Frankfurt on a tight budget then you should consider staying at a youth hostel. Although the accommodation provided at hostels is basic, they do provide all of the facilities you will need and won't break the bank.
Booking in advance gives you place to head for when you first arrive in a city and a base to plan from. It might be more exciting not doing this but it's worth it as you can relax and enjoy your journey.