sql server - What to store on ephemeral drive? (windows ec2 + sql)

I have an EBS-backed Windows EC2 server with an additional ephemeral drive (aka "instance store") which is really fast (SSD). The instance runs an IIS website + SQL Server

What can I move to the instance-store to fasten things up?

Currently I have moved:

• "TempDB" database for SQL server


• Non-crucial (temporary) backups


• Swap-file

What else can I move to the ephemeral drive to fasten things up? Windows TEMP folder? IIS logs? Would love the ideas.