I started doign landscaping this year as an added service for the customers. I was all maintenance before and have been doing great there, but wanted to expand. What is the fastest procedure for doing a new install? I have tried different methods like marking and spraying rotortilling then mulching.....and removing sod, tilling then mulching...but all jobs are different size and time consumption baffles me on which is the best and fastest method. Lay down a weed barrier, or is it not important??? remove it, or spray it? Any help as I am new to the added service..