You can build your own Mac, if you’re willing to put in the time and effort. A whole lot of effort.
I build a Hackintosh mini; here’s the parts I used.
At WWDC, Apple introduced new features that address the more egregious problems that plague users.
Timing can track both billable time and activity on your Mac so you can know how much to bill a client.
Take Control of Calendar and Reminders will help you master your time and tasks.