It is a good idea to have an idea of sites you want to visit and things you want to do during your trip. Do some research on travel blogs and communities beforehand. Ask friends and family who have traveled before about places they enjoyed the most. Read through site-specific guide books like Lonely Planet, Let's Go, Rough Guide, Rick Steves, or Frommers. You might be interested in the following sites:
Book all travel far in advance. However, do not book anything until after the first week of classes. You may find there are NYU-sponsored trips already in place.
If you are planning to travel to outside of Israel, then flying is your best bet. With flights, the earlier you book, the cheaper it will be. If you go on a low-fare airline, expect to pay a fee for any stowed luggage you bring.
With northbound trains leaving frequently from the Central Railway and Azrieli stations, the train is an great way to travel from Tel Aviv to northern cities, such as Netanya, Hadera, Haifa, and Nahariya.