The lawn is pretty thin right now. We bought the place 4 years ago from an elderly woman that didn't drive anymore, so she moved to town.
There was a significant issue with violets, white clover, dandelions and crabgrass. The broadleaf weed issues are under control, at least acceptable, but the existing turf is pretty thin. I did not use a per-emerge, since I was going to try to overseed and wow, the crabgrass really likes this weather! So now I need to kill it off too...