Do Catalinas only print out at certain stores at certain times? Or, can you get Catalinas for certain products at any store, as long as you buy the required amount of the product? Does that make sense?

I'm asking because I tried buying 4 Nabisco cracker products at Smith's today and I didn't get a Catalina. Do you only get it at Albertsons right now? I tried it at Smith's because the info about the Catalina printed out on my Shopping Wizard list for Smith's deals, so I thought it would work there too. Sorry, I am new at this and I guess I don't know all the rules yet
