1) They have parking spots close to the entrance for moms with kids. This means I don't have to walk with my meandering 3-year old across a busy parking lot. Which makes me less nervous and probably avoids a lot of accidents.

3) They have wipes at the entrance to the store. I know, I can't keep germs away from my family and some germs are good, but wiping the handles of the grocery carts makes me feel like I am keeping the worst of the cold germs (and God knows what other things) away from me and CJ.
4) They have convenient, clean bathrooms. Unlike some stores I've visited, the bathrooms are not in the dungeons of the store, they are easy to get to, well marked, clean, and kid-friendly.
5) There is always someone around to help me. This is key when I am in a hurry, have a child who is about to have a meltdown, or just plain can't find something and need help.
6) They give away balloons. At the end of each shopping trip, CJ gets a free balloon, which makes the entire excursion worthwhile, as far as he's concerned. Harris Teeter also gives away cookies, but we just ignore them, balloons are enough.
It seems not all grocery stores are made alike!