I'm almost done planting out a garden in my front landscape.
I need 1 more plant though (actually 3-5 plants, 1 cultivar). Very low groundcover (not more than 3", since a 4" sprinkler head has to clear it). Needs to be able to take full sun, heat off the asphault driveway, dry out between waterings (rain + every other day irrigation) and mild foot traffic. It's going right where my driveway meets up with the concrete walkway to the front door. It won't get a lot of foot traffic, but it's likely going to get stepped on, especially by our 13 lb dog, small kids and careless adults.
I think my best solution, thus far is Nepeta 'Little Titch'. I have it in another part of the front garden, also around a sprinkler head, and it's doing great. Not sure about the foot traffic aspect of it though. I've been told to consider thyme, but I know nothing about it.
Sedums are probably not a good idea since the area does get very very wet when it rains or irrigation runs.