If you are worried about pick pocketers go to www.pacsafe.com they have slash proof bags and purses as well as camera straps. Great for guys and gals. I used the citysafe 200 and its great.

MJ Article on Rome

Some other suggestions, although not necessary - Travel pillow, chewing gum (especially for those who have ear problems during flight), book and/or ipod and one change of clothing (air lines do lose luggage occasionally)

scuba_Nikki Article on Carry on luggage

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).

Liza_peral Article on Travelling alone