Ask HN: Workflow for managing client resources

My freelancing business is taking off and I have a reasonable amount of hours and client work available to me (mostly hourly, but I'm more comfortable in this "maintenance and management" type of work)

I'm using KeePass to manage my client logins. I'm using Harvest to manage project details, timesheets, invoicing, and client details. I'm beginning to add more and more clients that will rely on me to manage and ensure the stability of multiple platforms - typically VPSes and shared hosts.

Should I consider adding anything to my tools to ensure safety and streamline the process?

Thanks!