Things to do once you arrive in Singapore as a student/professional for long term visit

CC Image Courtesy: Román Emin from flickr

You are coming to Singapore for a fairly long visit. You already have your passport, tickets and other usuals. But you should also remember to do the following things to make your life easier. I have been asked these questions so many times from my friends or relatives visiting Singapore, that I thought of making a future reference for any visitors.