I've pretty much given up on making it look "good".
I do keep it weed free, treat for grubs/insects, and fertilize on schedule.
I live in a relatively new neighborhood and the grading on pretty much all then houses is high. This is important.
I also live in any area that is 100% clay. The high grading means everyone's yard slopes toward the property line. Over the course of years, topsoil is washed off the clay and down toward the property line. This creates an area of no topsoil and all clay, which is hard to grow grass in. If you are able to get grass growing by loosening the clay and cultivating seed (overseeding doesn't work), it is incredibly heat intolerant and goes dormant at the first sign of summer.
Water never penetrates the clay either (part of the cause of the heat intolerance) and just rolls down the grade toward the property line. That's where all the topsoil ended up though. So all the irrigation water rolls down the hard clay grade, ends up under the loose topsoil, and makes all the property line spongy. I've seen neighbors get their riding mower stuck in the muck by our property lines.
So what do you do? After the first summer, I paid to have topsoil trucked in and spread, then hydroseeded. 7 years later, it's right back to where I started. I've given up on the constant hassle and cost of topsoil and seeding. I don't even run my irrigation system anymore.
It looks great in the spring, goes dormant in the summer, and looks great again in the fall.
That's life. At least it's weed-free, which is more than I can say for some of my neighbors.