What kind/brand of fertilizer does everyone use to get the lawns nice and green come spring? And if you do fertilize, do you put it down now or do you want until around March 15th when it warms up and the grass begins to grow again. I live in Central N.J. At my parents house, my dad always used the Scotts 4-Step program and usually put it on around Easter, Memorial Day, 4th of July and Labor Day.. Each holiday meant there was another application of fertilizer to be put down and it always seemed to work out real well with the lawn. He also put down lime twice a year. Are there soil test-kits available to test the PH and stuff yourself, where can you get one, and are they expensive? Is the scotts 4-step really that good, or are there other brands just as good, just Scotts spends a ton of money on advertising? Thanks for the help.