Quickbooks does a great job of accounting for you, but if you want real control of your business, from first contact, to proposal, to completed sale, to planning of job(s) - one time or weekly, to routing, to recording work done, to assembling for billing, to actual billing, and to transfer to a Quicken or other accounting product for final accounting, you need some industry specific software. Check out http://www.clip.com
, for an old established program, or http://www.lawnmonkey.com
for a newer functional product. Both have free samples to try.