Thanks Rj, I usually go to U MD Extension for all the great info.
I like that it shows more mulch, stepping stones..
I think the takeaway is.. reduce what you try to keep as 'lawn'
Keep in mind, 'groundcover' means low growing somewhat spreading. It does NOT mean tough durable etc. They say "Maryland native groundcovers include wild ginger (Asarum canadense), alumroot (Heuchera americana), and green-and-gold (Chrysogonum virginianum)." I grow or have had all those. One roll or romp from a dog, those will be torn up for weeks. All dormant over winter= dirt or mulch area. -- they aren't a lawn substitute.
How about liriope/mondo grass as part of the lawn reduction? the spreading kind can cover an area, sun or shade (thinner in shade) with up to about a foot tall, (depends on type and conditions) mostly evergreen (or variegated) (gets ratty and browned after winter and you trim the old off yearly in early spring) grass like greenery. Very tough leaves that don't break easily.