Over on this side of the Atlantic, there's this chain of to-go supermarkets with stores on every train station. Earlier this year I found out that these tiny stores sold Clif Bars at basically cost price. They're pretty great!
Sadly, a mere few weeks after I found out they stopped selling it. They now sell their own bars, which are much more generic. I have yet to find another place where you can buy them at all over here that doesn't mark it up into the stratosphere. :(