It is surprising how many IT staff create backup plans and then leave it at that. To have a complete maintenance plan, you should also consider the following:
Checking database integrity
Shrinking Databases
Reorganizing Indexes
Rebuilding Indexes
Updating Statistics
Cleaning up old maintenance histories
Performing automatic backups
Backing up System databases
Last but not least - you should regularly check that the maintenance plans have been running successfully. Otherwise, all your backup and maintenance efforts are pointless
This can be found under Management | Maintenance Plans within the database tee in SQL Server.
Figure: SQL Server - A Complete Weekly Maintenance Plan