When you open a new Finder window, any changes you make to it (view, size, column widths, etc) before you use it to navigate anywhere are saved.
It's whacky, and if there was one thing I could change about X, that, well, wouldn't be it... but it would be high on the list 🙂
I want to be able to set every window that opens to be column view, a certain size, and in a certain place. At the moment, that simply isn't possible.
Hmm, this gives me an idea for a new thread...