Use peat for blueberries. Its PH is very low. I would not use it on lawns. On lawns compost is the way to go but you do not want to put too much. With too much you can get out of balance with your potassium to calcium ratio and phosphorus to calcium ratio.
Everyday you wake up you have been given 24 hours. What you do with those hours determines how rich you will become. The rich work the hours you don't see.
Great Book: "Think and Grow Rich"