How do I start a grass cutting service??

Where are you located? If in New Orleans then list your services on Craigslist, NOLA forums by neighborhood and if the areas you are targeting have community web sites list there. You'll get more bang for no buck or less buck that way. Also, signs on telephone poles work better than flyers. They stay up longer and more people see them. Other places to post info include local coffee shops and/or grocery stores. You have to think about what kind of person is likely to or able to pay for someone else to do the lawn. Obviously, the more affluent the neighborhood, the better you are likely to do. Good Luck. Oh yeah, you are also going to need a trailer of some kind to transport your equipment. Most lawn companies use enough equipment to be able to get and out with a crew in a hurry. The more lawns, the more money.