Thanks for all the replies and sorry for the delay in responding. It wasn't raining today so I was cutting lawns.
Craigslist has helped a ton in getting lawns along with fliers and word of mouth. I'm starting to get more neighbors of lawns I do than anything which is great. As far as variables I can control I'm working on getting as fast as possible on each lawn solo and of course trying to tighten my route.
Leaf removals in the fall as I found out last year have the potential to make some real money and at first when the leaves weren't too bad we could do two a day but as soon as it was towards the end of the leaf season it was one a day and the phone never stopped ringing. We actually turned down TONS of work which sucked but we just couldn't keep up.