Cafe lattes, bruchetta, chianti, gnochi, limoncella, baci chocolates, gelati, pizza, it's impossible to not try everything in Italy.
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).
If you have a high-def video camera, be sure to take it on a hike with you to the bottom of the canyon. HD is the only way to bring out the gorgeous contrast of blue sky and red rock that you'll want to show everyone at home.