Installation and multiple terminals
Install each terminal into its own directory if you run several accounts. Sharing one installation across accounts makes template and expert advisor management confusing very quickly.
Multi-monitor and layout
Use one monitor for charts and one for the terminal panel, calendar and order tickets. Save the arrangement as a profile so a crash costs seconds rather than minutes.
When a VPS is worth it
If you run automated strategies, a virtual private server keeps them online through local power cuts, reboots and connection drops. For manual trading, a VPS mainly helps if your home connection is unreliable.