I began a lawn renovation fourteen days ago. I used Lesco's Duro-Turf (a fescue / hybrid bluegrass blend). My soil is clay, so I used a plugger / aerator before I began. The steps I took were: I performed a soil test, spread lime, went over the seed bed four or five times with a plugger (weighted it down to 200lbs to penetrate deep), spread fertilizer, spread seed (at a heavy rate), and rolled over the seed with a lawn roller; I water 10 minutes, twice a day. Now, my problem... While there is grass everywhere (and Duro-Turf is awesome, by the way) and some sections of the yard are moderately thick, most areas are too sparse. I am concerned that there is too much dirt available for weeds in the spring. I seeded very heavily, but the seed has mostly "taken" in the holes created by the aeration. I have already spent oodles of money and can only afford $200-300 more (I really can't afford even that, but don't want all the money I have already put into this to go down the tubes!). To give you an idea of how far my buck will go, I have about a half acre. One guy suggested organic fertilizer to see if I can get what's already out there to germinate, but I really can't afford enough to make it worthwhile. The only other option I can see is to overseed. I don't want to do it in the spring because I want to be able to apply a pre-emergent. My questions: 1) Given my budgetary constraints, are there any better suggestions than overseeding? 2) If I overseed: a) How can I get optimum results? b) Should I mow over or rake up the straw that is out there now from my first seeding (to ensure that the new seed will reach the soil?)? c) Can I / should I use a slit seeder to overseed or is my new grass too fragile? d) I have a moderate slope in my front yard, can I slit seed on it? Sorry for the length of the post...just wanna get it right!