As an IT person your software needs are the same as other businesses, but since you are a service business and an IT business you need other features that basic small business, business management software does not have. Service Desktop Pro is one of many solutions on the market you might want to consider.
It’s core modules include – Contact Management, Activity Scheduling, Leads Management, Project Management, Expense Allocation, Billing Management, Service Support, Management, Subscription Management, Document Management.
It’s $99 and you get a lifetime of free upgrades.
I took Service Desktop for a spin and it’s pretty simple to use. Like any software, the “challenge” you’ll face is what parts of your business (appointments, todo, etc) you place in Service Desktop and what parts you continue to use something like Microsoft Outlook for. It has an invoice tool, and again, do you use Intuit Quickbooks or Service Desktop?
The tag line of Service Desktop reads, “do you use spreadsheets and whiteboards to manage your business”. If you do you should consider digitizing your enterprise and see if Service Desktop is a good fit for you.
If you have multiple staff who need to use Service Desktop multiple versions can share one database backend.