I work mostly solo, and I have to say that a round here I work for $60 an hour. That's mowing, mulching, pruning, pretty much everything. As others have mentioned, keep the overhead low... Buy a trailer, mower, and trimmer, and then just use em and work em. When It comes to estimating, it really comes down to you learning how fast you and your equipment can work. I try and get a dollar a minute from gate drop to gate up. There are obviously exceptions for larger properties, seeing as I don't have to drive around from property to property. Any other questions feel free to ask.