We discussed a bit about the background of a Visa and a Passport and what it can really mean for you. Another important thing is to have an international health insurance. I believe there are countries where it is illegal not to have any insurance at all. Meaning you can’t even get into the country, whether you are an expat or just a tourist.
Do you research very well and everything will be definitely ok. Just be prepared, the same as looking on time on your visa or passport expire date. It goes for everything, before you buy your milk you still look at the expire date, why not do the same when you about to go on a holiday or move to another country.