Selecting and removing old snapshots

Me: "Say Customer X, I see you still have some snapshots here and there. Can I remove them? It's not wise to keep them for a long time."
Customer X: "Oh yeah, I forgot about those. Well: those updates we did worked out fine, so anything from before 11-07-2016 can be deleted"

Get-VM | Get-Snapshot | Where {$_.Created -lt (Get-Date 11-07-2016) | Remove-Snapshot -confirm:$false

Me: "OK, done!"

Another possibility: "Can you give me a list of snapshots that are older than a week?"

Get-VM | Get-Snapshot | Where {$_.Created -lt ((Get-Date).AddDays(-7))} | Select VM, Name

Did I say how much I love Powershell/PowerCLI? ;-)