Passport
Do I need to explain?! but make sure your passport isn't expiring before 6 months as several countries like Israel among them will deny you entrance and wont permit international travelers to enter unless their passport remains valid for at least another six months.
International Cell Phone Rental
Don't make the mistake of paying a fortune on your cell phone when you travel international, rent a cell phone that provides you a local phone number and pay low rates, visit CelloMobile.com to find out more.
Clothing
Sabbath/Weekdays, oh the list is big I'm not even going to try listing them... If you would like to add to the list or make comments go to the packing list section in our Blog.