Know your grass, sunny and shaded areas, know when to apply your pre-emergents, when to fertilize, insect and pest control according to the area you live in, I am on the Pacific Northwest, WA State.
I usually start my pre-emergent in early February and with another treatment in early April. Fertilization starts in mid March and spoon feed until the grass fully wakes up in Spring. I use a variety of products from liquid to granular on a hybrid synthetic and organic program catered for my yard size and grass type.
The featured picture displayed for this is real grass and not fake turf like everyone says, it is POA Supina grass, shade loving and spreads through rhizomes so it has the ability to repair itself.