As I was doing some work with Sitecore Automation Framework, I needed to quickly export certificates from my local store.  Here is the quickest way that I could come up with.

ls | ?{ $_.FriendlyName -match "_SAF$" } | %{ Export-PfxCertificate -Cert $_ -FilePath "C:\<projroot>\infra\configuration\Local\$($_.FriendlyName).pfx" -Password (ConvertTo-SecureString -String "1234" -Force -AsPlainText) }

Maybe there is a nicer way to do that but that’s what comes to mind.