I want to make a barbecue sauce which has chicken stock in its recipe. This is the first time I needed chicken stock for cooking; somehow, I didn't come by it up until now.    Anyway, neither me or any of my roommates ever buy chickens with bones; we always buy clean chickens or clean wings (nothing to create stock with).    I understand I could buy a chicken with bones for the sake of making chicken stock, but I was wondering whether there is an easier, alternative solution that could substitute for chicken stock in my sauce. Think of "chicken stock for students." 
Considering the sheer number of rather strong ingredients in that recipe - if it were me and I didn't have stock and didn't want to make or buy any...I'd substitute broth as a first option and salted water as a second option. 