So I just got offered a pretty big job. The client and I decided to split it into a few separate jobs. The first job is completely removing all of the weeds and crap for these 2 big beds that run along the driveway. I would say the beds are both about 30 ft long and 3-4 feet in depth. She wants me to take everything out so that it wont grow back. What i'm planning is to completely flip the soil (by hand) until its all nice dirt (removing all of the crap). Ultimately we will be mulching and planting some stuff so I will not spray anything (i'm also not licensed to do so). I will then put down "Preen" which I really like and find that it works very well. Am I going about this the right way? Also the two trees are part of the job, so I will have to take those out as well. She doesn't care to much if that comes out by the roots or just cut down to the ground. How long do you think this could take for 2 workers? Thanks in advance for all the help, I really really appreciate it.