Last Updated: 16th Feb 2011
Make sure you try currywurst in Germany. It's basically a hot dog with tomato sauce (ketchup) and curry powder. Tastes brilliant and only costs 1 or 2 Euro.
I went alone last summer (06). I met some wonderful people…I liked it so much, that I am going on the London + Paris trip next week (alone again).
Take 50€ and put it somewhere safe, your suitcase, your travel documents, wherever. This way you'll have it just in case.