compress all folders inside current folder

compress-folders.ps1

foreach($folder in Get-ChildItem) {
  if(Test-Path -PathType Leaf -Path "$folder.zip") {
    Write-Host "Skipping $folder"
    continue
  }

    Write-Host -NoNewline "Compressing $folder..."
    Compress-7Zip -Path "$pwd\$folder" -ArchiveFileName "$folder.zip"
    Write-Host "done"
}

I used it to compress the picture folders in my phone's backup. I like to compress small files like pictures so I can deal with them as a set instead of transferring each image individually.