Originally Posted by
Flying Yazata
Actually I have one golden rule: at least one overnight stay at some form of accodomation means a proper visit and is counted as a country checked off my list. So I'm with Maluku_Flyer on this. Plus it's nuts to travel to somewhere like Vanuatu and then just leave the same day. Crazy waste of time and money.
This will slow you down a lot, of course, and greatly increase the cost. Because for overnight stays you'll need proper visas for a lot of places where visas aren't easy to get on short notice and/or expensive. Most of those places will be in Africa. And you'd definitely need multiple passports, one of them will always be parked in some consulate awaiting a visa.
And in a place like South Sudan I'd probably rather take off again on the next plane out.