I planted a bed of Variegated Pachysandra in a bed in mostly shade that is bordered by sidewalk, driveway and my brick house. Hopefully that will keep it contained. Also just this season planted an "island" bed in my larger side garden with large-leaf Vinca that is bounded on all sides by sidewalk and driveway.
In my front yard bed, I planted about 10 sets of Lamb's Ear, hoping it will meander between the 3 Crepe Mrtles, Giant Liriopes and fill out all unplanted areas to choke out weeds. It has done so effectively in my back yard bed, so I hope it does the same out front. That bed is bordered by sidewalk and metal edging, so I'm hoping it won't jump into my lawn. That's what we hire the lawn guys for, to keep that edging "clear" of encroachment.