Now is the time to send off your passports to get more pages added, if necessary.
You should have
at least 15
blank
pages in your passport. Some countries and airlines have the policy that if you do not have at least 2-4 clean pages when you enter, they will not stamp your passport.
As soon as the route is finalized, you will begin sending off your passport to countries that require a visa, so make sure you send off to get your extra pages
soon.
You will find instructions on how to do this here.
