Oh, Liz, been there, done that! Fortunately it was about 9 or 10 years ago. Crow_noir's tip #1 is what works for me when an accidental escape happens. Actually I found out about it by default when one time I lost sight of which way she went, so had no choice but to return home by myself. It wasn't but a few minutes later when she showed up at the front door. Now across the street is as far as she goes (I refuse to chase her even that far) and that when Crow_noir's tip #2 puts seals the deal to her coming home.

Another caution - don't accidently lean against the button which operates your garage door when the dogs are in the garage.