weed prevention for two years: newspaper will prevent any grass/weed seeds from germinating, but unlike fabric, it will decompose after ~ 18 months. By that time, any grass/weed seeds that were present in the soil on planting will be dead.
How to clean glass top stove Pinner says "Ok, I just tried this and it seriously did work. I did it twice on a burner that's had scorch marks for a year or more and they're gone! For anyone as OCD about cleaning as I am, this is a must!