The chip + pin feature of my Barclaycard has never been as useful as it was on a recent week-long roadtrip around Iceland: without it, gas choices would have been limited to manned stations during rather limited business hours.
Iceland was the first country I've visited for any length of time without getting any local currency. Like many people, I prefer to use credit as much as possible for the security, convenience, and rewards, but often cash just can't be avoided. Iceland credit card acceptance was 100%, even for small transactions at small operations off the beaten path.
Now, if only everything there wasn't so darn expensive...
Points of interest
Special even in a country with tons of waterfalls, this one emerges from hundreds of natural springs