cd that: 1) navigates to parent folder when given a file path; 2) supports cd - to pop; 3) supports multiple parent changes with 2+ `.`

cd.ps1

function Set-LocationButBetter {
    param (
        [Parameter(
            ValueFromPipeline,
            ValueFromPipelineByPropertyName
        )]
        $Path
    )

    process {
        # Allows us to alias shortcuts
        if($MyInvocation.BoundParameters.Count -eq 0){
            $Path = $MyInvocation.InvocationName
        }
        # If this contains 3 or more period, that means move up additional levels.
        if($Path -match '^\.{2,}$'){
            $depth = $Path.Length
            $path = Get-Location
            # Start at 1 to treat the initial '..' as 1 parent.
            for ($i = 1; $i -lt $depth; $i++) {
                $path = (Split-Path $path -Parent)
            }
        }
        if ($Path -eq '-'){
            Pop-location
        } else {
            if ([System.IO.File]::Exists($Path)) {
                Push-Location (Split-Path $Path -Parent)
            }
            else {
                Push-Location $Path
            }
        }
    }
}

Remove-Item alias:cd
Set-Alias -Name cd -Value Set-LocationButBetter
Set-Alias -Name .. -Value Set-LocationButBetter
Set-Alias -Name ... -Value Set-LocationButBetter

Also this does something I usually forbid: overwrite a param variable. But it's Good Enough