I'm wondering what people's experiences have been, redeeming coupons for restaurants while enroute? I notice that some coupons for national chains say "Good only in Southern California at participating retailers", while others have no such stipulation.

We hope to just eat at local places as much as we can, as we travel from now on. However, there are some times when one just has to grab something to eat at a fast food place, or a chain restaurant like Denny's, IHOP or similar.

Grocery coupons don't seem to have the limitations that some restaurant coupons do. Maybe that's because they're brand-based instead of store-based, though.