Hi there. I'm trying to whip my lawn into shape after several years of neglect. The yard has several large maple trees so it's pretty shady. A few years ago my in-laws who owned the house before us put in sod, but with very little upkeep, the yard now has a lot of small bare spots (see photo) which I would like to correct. The soil has a lot of clay in it, so about a week ago I applied gypsum. I am dedicated to turning this into a good quality lawn and keeping it that way so I have some questions. 1. I'm not sure what's more important, overseeding the lawn, or fertilizing it. It's actually probably a little overdue for the spring fertilizer, but from what I understand it's not good to plant seed for a few months after fertilizing. I was thinking my best course of action might be to overseed and just use a starter fertilizer instead of the spring fertilizer. I'll just have to spot treat weeds as they pop up. I'm just concerned that starter fertilizer won't do much to help out the existing lawn. 2. I was also wondering if I need to over seed, or will my lawn fill in the bare spots by itself if I get it nice and healthy with the fertilizer? 3. My in-laws have tried planting seed in the past, and it seems to do ok the first year, but by the next year you can't tell it was there. I read that it is common for cheap seeds to do that, so I was planning on buying Scotts Sun/Shade mix with water smart until I saw on their own website it did not get a lot of good reviews. There is also a landscape supply company fairly close who has their own blends of seeds. What is a good way to find out if the seed is of a high quality that will last for years? That's all for now! Thanks!