I know lawn care isn't rocket science, but is there a better time of day than others to water the lawn? I see people water first thing in the morning, others like me in the evening. Is one better than the other? I have a mediocre lawn. Weed free, some dead spots, but mostly even grass, but it has a lot of brown mixed in. I water three times a week for about an hour. Too much? I want to put it over the top, but I don't want to just throw down a bunch of ironite and call it good. Any ideas?