Synx, keep Xcode folder structure organized

Xcode is a tool that doesn't force developers to have any particular folder structure: everything can be managed using groups, virtual folders that live in your .xcodeproj file.
This gives you a lot of freedom but during the long period it can create some problems: how to refactor the folder structure quickly?


iOS Developer: how to be prepared for an interview

Sometimes my company needs to hire new iOS Developer and, in the last year, I was responsible for the interviews. I've found a lot of articles regarding how to do the perfect interview and (increase possibilities to) be hired, but no one on how the interviewer should prepare himself.
What do you need to survive?